Physics-
A particle starts from rest at
and moves in a straight line with an acceleration as shown below. The velocity of the particle at
is

Physics-General
Answer:The correct answer is:
Velocity of graph
Area of
-
graph

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Related Questions to study
physics-
There resistances of 4
each are connected as shown in figure. If the point D divides the resistance into two equal halves, the resistance between points A and D will be

The equivalent circuit is given by

4
and 2
resistances are in series on both sides.

Then 6
and6
resistances are in parallel on both sides

R=3

4
Then 6
R=3
There resistances of 4
each are connected as shown in figure. If the point D divides the resistance into two equal halves, the resistance between points A and D will be

physics-General
The equivalent circuit is given by

4
and 2
resistances are in series on both sides.

Then 6
and6
resistances are in parallel on both sides

R=3

4
Then 6
R=3
physics-
The equivalent resistance between the points A and B will be (each resistance is
15
)

The circuit can be shown as given below

The equivalent resistance between D and C.



Now, between A and B, the resistance of upper part ADCB,

Between A and B, the resistance of middle part AOB

Therefore, equivalent resistance between A and B






The equivalent resistance between D and C.
Now, between A and B, the resistance of upper part ADCB,
Between A and B, the resistance of middle part AOB
Therefore, equivalent resistance between A and B
The equivalent resistance between the points A and B will be (each resistance is
15
)

physics-General
The circuit can be shown as given below

The equivalent resistance between D and C.



Now, between A and B, the resistance of upper part ADCB,

Between A and B, the resistance of middle part AOB

Therefore, equivalent resistance between A and B






The equivalent resistance between D and C.
Now, between A and B, the resistance of upper part ADCB,
Between A and B, the resistance of middle part AOB
Therefore, equivalent resistance between A and B
physics-
A 3 V battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be

Resistance in the arms AC and BC are in series,

∴ R’=3+3=6
Now, R’ and 3
are in parallel,

Now, V=IR


∴ R’=3+3=6
Now, R’ and 3
Now, V=IR
A 3 V battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I, in the circuit will be

physics-General
Resistance in the arms AC and BC are in series,

∴ R’=3+3=6
Now, R’ and 3
are in parallel,

Now, V=IR


∴ R’=3+3=6
Now, R’ and 3
Now, V=IR
maths-
Period of
is
Period of
is
maths-General
physics-
A current of 2A flows in an electric circuit as shown in figure. The potential difference
, in volts(
are potentials at R and S respectively) is

Current through each arm
PRQ and PSQ=1A


From Eqs. (i) and (ii), we get

PRQ and PSQ=1A
From Eqs. (i) and (ii), we get
A current of 2A flows in an electric circuit as shown in figure. The potential difference
, in volts(
are potentials at R and S respectively) is

physics-General
Current through each arm
PRQ and PSQ=1A


From Eqs. (i) and (ii), we get

PRQ and PSQ=1A
From Eqs. (i) and (ii), we get
physics-
The total current supplied to the given circuit by the battery is

The equivalent circuit of the given circuit is as shown

Resistances 6
and 2
are in parallel

Resistances

Resistances 3
and 3
are in parallel

The current,


Resistances 6
Resistances
Resistances 3
The current,
The total current supplied to the given circuit by the battery is

physics-General
The equivalent circuit of the given circuit is as shown

Resistances 6
and 2
are in parallel

Resistances

Resistances 3
and 3
are in parallel

The current,


Resistances 6
Resistances
Resistances 3
The current,
physics-
The current in the 1
resistor shown in the circuit is

In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
The current in the 1
resistor shown in the circuit is

physics-General
In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
physics-
The current in the 1
resistor shown in the circuit is

In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
The current in the 1
resistor shown in the circuit is

physics-General
In the given circuit 4
resistors are connected in parallel, this combination is connected in series with 1
resistance.



Also, R’’=2
+1
=3
From Ohm’s law,


Also, R’’=2
From Ohm’s law,
maths-
Period of 
Period of 
maths-General
physics-
What is the equivalent resistance between
in the given circuit?


Now,
What is the equivalent resistance between
in the given circuit?

physics-General

Now,
maths-
Extreme Values:The range of 
Extreme Values:The range of 
maths-General
physics-
In a network as shown in the figure, the potential difference across the resistance 2R is (the cell has an emf of E volt and has no ingternal resistance)

In the given circuit, resistors 4R and 2R are connected in parallel while resistance R is connected in series to it.
Hence, equivalent resistance is






Given, emf is E volts, therefore


Potential difference across R is

Potential difference across 2R is

Hence, equivalent resistance is

Given, emf is E volts, therefore

Potential difference across R is
Potential difference across 2R is
In a network as shown in the figure, the potential difference across the resistance 2R is (the cell has an emf of E volt and has no ingternal resistance)

physics-General
In the given circuit, resistors 4R and 2R are connected in parallel while resistance R is connected in series to it.
Hence, equivalent resistance is






Given, emf is E volts, therefore


Potential difference across R is

Potential difference across 2R is

Hence, equivalent resistance is

Given, emf is E volts, therefore

Potential difference across R is
Potential difference across 2R is
physics-
In the adjoining figure the equivalent resistance between A and B is

Equivalent circuit of the given circuit is
Between points C and D resistors 2
, 2
and 2
are in series, therefore, their equivalent resistance,

Resistors R’ and 6
are in parallel, therefore their equivalent resistance is given by


Now between points A and B 1
, 3
and 1
are in series.
Therefore, resultant resistance is
R=1+3+1=5
Between points C and D resistors 2
Resistors R’ and 6
Now between points A and B 1
Therefore, resultant resistance is
R=1+3+1=5
In the adjoining figure the equivalent resistance between A and B is

physics-General
Equivalent circuit of the given circuit is
Between points C and D resistors 2
, 2
and 2
are in series, therefore, their equivalent resistance,

Resistors R’ and 6
are in parallel, therefore their equivalent resistance is given by


Now between points A and B 1
, 3
and 1
are in series.
Therefore, resultant resistance is
R=1+3+1=5
Between points C and D resistors 2
Resistors R’ and 6
Now between points A and B 1
Therefore, resultant resistance is
R=1+3+1=5
physics-
The charge on the capacitor of capacitance
shown in the figure below will be

The charge on the capacitor of capacitance
shown in the figure below will be

physics-General
physics-
Each resistance shown in figure is 2
. The equivalent resistance between A and B is

Given circuit is a balanced Wheatstone bridge. So, diagonal resistance of 2
will be ineffective.

Equivalent resistance of upper arms
=2+2=4
Equivalent resistance of lower arms
=2+2=4


Equivalent resistance of upper arms
=2+2=4
Equivalent resistance of lower arms
=2+2=4
Each resistance shown in figure is 2
. The equivalent resistance between A and B is

physics-General
Given circuit is a balanced Wheatstone bridge. So, diagonal resistance of 2
will be ineffective.

Equivalent resistance of upper arms
=2+2=4
Equivalent resistance of lower arms
=2+2=4


Equivalent resistance of upper arms
=2+2=4
Equivalent resistance of lower arms
=2+2=4