Physics
Grade-10
Easy
Question
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.
- Assertion is correct, the reason is correct; the reason is not a correct explanation for assertion
- The assertion is correct, the reason is incorrect
- Assertion is correct, the reason is correct; the reason is a correct explanation for assertion
- Assertion is incorrect, reason is correct
Hint:
The emf induced will be zero when the coil is parallel to the magnet and the induced current at the ends of the coil will be Blv sinθ.
The correct answer is: Assertion is correct, the reason is correct; the reason is a correct explanation for assertion
The assertion is correct, the reason is correct; the reason is a correct explanation for assertion
- The electric current will be maximum when the coil is perpendicular to the magnet.
- The current induced will be zero when the coil lies perpendicular to the magnet,
- The induced current in the ends of the conductors can be explained as Blv sinθ
Related Questions to study
Physics
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.
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.
PhysicsGrade-10
Physics
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:
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:
PhysicsGrade-10
Physics
When a bar magnet is pushed towards the coil connected in series with a galvanometer, the pointer in the galvanometer G:
When a bar magnet is pushed towards the coil connected in series with a galvanometer, the pointer in the galvanometer G:
PhysicsGrade-10
Physics
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:
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:
PhysicsGrade-10
Physics
A current can be induced in a coil by:
A current can be induced in a coil by:
PhysicsGrade-10
Physics
Electromagnetic induction is defined as the following:
Electromagnetic induction is defined as the following:
PhysicsGrade-10
Physics
In a magnetic field, a rectangular coil of copper wires is rotated. Once in each rotation, the direction of induced current changes.
In a magnetic field, a rectangular coil of copper wires is rotated. Once in each rotation, the direction of induced current changes.
PhysicsGrade-10
Physics
The rectangular coil of the electric generator executes ______ motion.
The rectangular coil of the electric generator executes ______ motion.
PhysicsGrade-10
Physics
No current gets induced in the coil when it is
No current gets induced in the coil when it is
PhysicsGrade-10
Physics
The induced current in the coil placed in a magnetic field is zero when the angle between the direction of motion of wire and the direction of the magnetic field is
The induced current in the coil placed in a magnetic field is zero when the angle between the direction of motion of wire and the direction of the magnetic field is
PhysicsGrade-10
Physics
In an electric generator, which force is used to rotate the coil?
In an electric generator, which force is used to rotate the coil?
PhysicsGrade-10
Physics
Induced current's direction in a wire that is moving in a magnetic field can be determined using:
Induced current's direction in a wire that is moving in a magnetic field can be determined using:
PhysicsGrade-10
Physics
Which of the following is constructed on the principle of electromagnetic induction?
Which of the following is constructed on the principle of electromagnetic induction?
PhysicsGrade-10
Physics
The induced current in the rotating coil is maximum when it is _____.
The induced current in the rotating coil is maximum when it is _____.
PhysicsGrade-10
Physics
When a current-carrying coil C2 is moved towards a coil C1 connected in series with a galvanometer, the pointer in the galvanometer G:
When a current-carrying coil C2 is moved towards a coil C1 connected in series with a galvanometer, the pointer in the galvanometer G:
PhysicsGrade-10
