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    Physics
    Grade-10
    Easy

    Question

    The split rings are also known as ____.

    1. Brushes
    2. Armature
    3. Commutator
    4. Magnets

    Hint:

    Split rings are also called commutators.

    The correct answer is: Commutator

      The split rings are also known as commutators.
      • The split rings are the simple, circular or cylindrical shell coils that change the direction of current flow in generators.
      • They reverse the current flow in DC generators to let them flow in a uniform single direction.
      • The split rings are also called commutators.

      Related Questions to study

      Grade-10
      Physics

      The device which converts mechanical energy into electrical energy is called a/an _____.

      1. Electric motor
      2. Electric generator
      3. Transformer
      4. Inverter

      The device which converts mechanical energy into electrical energy is called a/an _____.

      PhysicsGrade-10
      1. Electric motor
      2. Electric generator
      3. Transformer
      4. Inverter
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      When the plane of the armature of an AC generator is parallel to the field, in which is it rotating?

      1. Flux linked is maximum while induced emf is zero
      2. The flux linked with it is zero, while induced emf is maximum
      3. Both the flux linked and induced emf in the coil are zero.
      4. Both the flux and emf have their respective maximum values

      When the plane of the armature of an AC generator is parallel to the field, in which is it rotating?

      PhysicsGrade-10
      1. Flux linked is maximum while induced emf is zero
      2. The flux linked with it is zero, while induced emf is maximum
      3. Both the flux linked and induced emf in the coil are zero.
      4. Both the flux and emf have their respective maximum values
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      Electric generators can produce

      1. Only AC current
      2. Only DC current
      3. Both AC and DC current
      4. No current

      Electric generators can produce

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      1. Only AC current
      2. Only DC current
      3. Both AC and DC current
      4. No current
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      Grade-10
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      The essential difference between an A.C. generator and a D.C. generator is that

      1. A.C. generator has an electromagnet, while a D.C. generator has a permanent magnet.
      2. D.C. generator will generate a higher voltage
      3. A.C. generator will generate a higher voltage
      4. A.C. generator has slip rings while the D.C. generator has split rings.

      The essential difference between an A.C. generator and a D.C. generator is that

      PhysicsGrade-10
      1. A.C. generator has an electromagnet, while a D.C. generator has a permanent magnet.
      2. D.C. generator will generate a higher voltage
      3. A.C. generator will generate a higher voltage
      4. A.C. generator has slip rings while the D.C. generator has split rings.
      Grade-10
      Physics

      Choose the correct option by reading the following statements: Assertion: The induced emf in a conducting loop of wire will be nonzero when it rotates in a uniform magnetic field. Reason: The emf is induced due to a change in magnetic flux.

      1. Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
      2. The assertion and reason both are false.
      3. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
      4. Assertion is false but the reason is true.

      Choose the correct option by reading the following statements: Assertion: The induced emf in a conducting loop of wire will be nonzero when it rotates in a uniform magnetic field. Reason: The emf is induced due to a change in magnetic flux.

      PhysicsGrade-10
      1. Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
      2. The assertion and reason both are false.
      3. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
      4. Assertion is false but the reason is true.
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      An induced emf is induced in the circuit whenever the magnetic flux is related to a coil change:
      I. for short, the e.m.f. lasts
      II. for an extended period of time
      III. for as long as the flux is changing
      The correct statement(s) is/are
       

      1. II and III
      2. III only
      3. I and III
      4. I and II

      An induced emf is induced in the circuit whenever the magnetic flux is related to a coil change:
      I. for short, the e.m.f. lasts
      II. for an extended period of time
      III. for as long as the flux is changing
      The correct statement(s) is/are
       

      PhysicsGrade-10
      1. II and III
      2. III only
      3. I and III
      4. I and II
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      Read the following statements and choose the correct option.
      Assertion: The figure shows:

      a metallic conductor moving in a magnetic field. The induced emf across its ends is non zero.
      Reason: The induced emf across the ends of a conductor is given by Blv sinθ.

      1. Assertion is correct, the reason is correct; the reason is not a correct explanation for assertion
      2. The assertion is correct, the reason is incorrect
      3. Assertion is correct, the reason is correct; the reason is a correct explanation for assertion
      4. Assertion is incorrect, reason is correct

      Read the following statements and choose the correct option.
      Assertion: The figure shows:

      a metallic conductor moving in a magnetic field. The induced emf across its ends is non zero.
      Reason: The induced emf across the ends of a conductor is given by Blv sinθ.

      PhysicsGrade-10
      1. Assertion is correct, the reason is correct; the reason is not a correct explanation for assertion
      2. The assertion is correct, the reason is incorrect
      3. Assertion is correct, the reason is correct; the reason is a correct explanation for assertion
      4. Assertion is incorrect, reason is correct
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      Choose the correct option from the following statements.
      Assertion: The movement of a conductor in a magnetic field can induce an emf.
      Reason: A change of the magnetic field might cause an emf.

      1. Assertion is incorrect, reason is correct.
      2. The assertion is correct, the reason is correct; the reason is not a correct explanation for assertion.
      3. The assertion is correct, the reason is incorrect.
      4. The assertion is correct, the reason is correct; the reason is a correct explanation for assertion.

      Choose the correct option from the following statements.
      Assertion: The movement of a conductor in a magnetic field can induce an emf.
      Reason: A change of the magnetic field might cause an emf.

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      1. Assertion is incorrect, reason is correct.
      2. The assertion is correct, the reason is correct; the reason is not a correct explanation for assertion.
      3. The assertion is correct, the reason is incorrect.
      4. The assertion is correct, the reason is correct; the reason is a correct explanation for assertion.
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      Consider a coil and a magnet.

      Current is induced in the coil when:
      I. coil and magnet both are at rest.
      II. the coil is at rest and the magnet moves along x.
      III. magnet is at rest and coil moves along x.
      IV. both coil and magnet move along y with the same speed.
      The correct statements are:

      1. III and IV
      2. I and IV
      3. I and II
      4. II and III

      Consider a coil and a magnet.

      Current is induced in the coil when:
      I. coil and magnet both are at rest.
      II. the coil is at rest and the magnet moves along x.
      III. magnet is at rest and coil moves along x.
      IV. both coil and magnet move along y with the same speed.
      The correct statements are:

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      1. III and IV
      2. I and IV
      3. I and II
      4. II and III
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      When a bar magnet is pushed towards the coil connected in series with a galvanometer, the pointer in the galvanometer G:

      1. Shows deflection when the bar magnet is in motion
      2. Does not move
      3. Shows deflection when the bar magnet is stationary
      4. Oscillates

      When a bar magnet is pushed towards the coil connected in series with a galvanometer, the pointer in the galvanometer G:

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      1. Shows deflection when the bar magnet is in motion
      2. Does not move
      3. Shows deflection when the bar magnet is stationary
      4. Oscillates
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      A loop is formed by connecting a coil of insulated copper wire to a galvanometer, and a magnet is:
      A: Held stationary
      B: Moved away along its axis
      C: Moved along its axis
      There will be an induced current in:

      1. A only
      2. A and B only
      3. B and C only
      4. A, B, and C

      A loop is formed by connecting a coil of insulated copper wire to a galvanometer, and a magnet is:
      A: Held stationary
      B: Moved away along its axis
      C: Moved along its axis
      There will be an induced current in:

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      1. A only
      2. A and B only
      3. B and C only
      4. A, B, and C
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      A current can be induced in a coil by:

      1. Moving the coil in a magnetic field
      2. By changing the magnetic field around it
      3. By changing the orientation of the coil in the magnetic field
      4. All the above options

      A current can be induced in a coil by:

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      1. Moving the coil in a magnetic field
      2. By changing the magnetic field around it
      3. By changing the orientation of the coil in the magnetic field
      4. All the above options
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      Electromagnetic induction is defined as the following:

      1. The process of charging a body
      2. The process of generating magnetic field due to current passing through, a coil
      3. Producing induced current in a coil due to relative motion between a magnet and the coil
      4. The process of rotating a coil of an electric motor

      Electromagnetic induction is defined as the following:

      PhysicsGrade-10
      1. The process of charging a body
      2. The process of generating magnetic field due to current passing through, a coil
      3. Producing induced current in a coil due to relative motion between a magnet and the coil
      4. The process of rotating a coil of an electric motor
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      In a magnetic field, a rectangular coil of copper wires is rotated. Once in each rotation, the direction of induced current changes.

      1. One revolution
      2. One fourth revolution
      3. Half revolution
      4. Two revolutions

      In a magnetic field, a rectangular coil of copper wires is rotated. Once in each rotation, the direction of induced current changes.

      PhysicsGrade-10
      1. One revolution
      2. One fourth revolution
      3. Half revolution
      4. Two revolutions
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      The rectangular coil of the electric generator executes ______ motion.

      1. Oscillatory motion
      2. Translatory
      3. Vibrational
      4. Rotational

      The rectangular coil of the electric generator executes ______ motion.

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      1. Oscillatory motion
      2. Translatory
      3. Vibrational
      4. Rotational
      parallel

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