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PHXII03:CURRENT ELECTRICITY

356910 Assertion :
Consider the two situations shown in the figure. Potential difference between point $A$ and $B$ , in case $I$ is more as compared to case II.
Reason :
In case $I V_{A} - V_{B} = E + I r$
In case $I I V_{A} - V_{B} = E - I r$
supporting img

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

supporting img
$V_{A} - E - I r = V_{B} \Rightarrow V_{A} - V_{B} = E + I r$
Similarly

$V_{A} - V_{B} = E - I r$ So correct option is (1).

PHXII03:CURRENT ELECTRICITY

356911 A battery of emf 10 $V$ and internal resistance 3 $o h m$ is connected to a resistor. The current in the circuit is 0.5 $A$ . The terminal voltage of the battery when the circuit is closed is

1

10 V

2

0 V

3

1.5 V

4

8.5 V

Explanation:

Terminal voltage $V = E - I r$
$V = 10 - 0.5 \times 3 = 10 - 1.5 = 8.5 V$

KCET - 2006

PHXII03:CURRENT ELECTRICITY

356912 In the given circuit, the terminal potential difference of the cell is
supporting img

1

3 V

2

2 V

3

4 V

4

1.5 V

Explanation:

$4 Ω$ & $4 Ω$ are in the parallel $R^{'} = \frac{4}{2} = 2 Ω$
supporting img

Equivalent resistance of the circuit,
$R_{e q} = 1 + 2 = 3 Ω$
Current, $i = \frac{E}{R_{e q}} = \frac{3}{3} = 1 A$
Potential difference across cell $= V - i r$
$= 3 - 1 \times 1 = 2 V .$

JEE - 2024

PHXII03:CURRENT ELECTRICITY

356913 Assertion :
Terminal voltage of a cell is greater than $e . m . f .$ of the cell, during charging of the cell.
Reason :
The $e . m . f .$ of a cell is always greater than its terminal voltage.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

During charging, the terminal voltage across battery is greater than $E M F$ . Only when delivers current to external circuit $E M F$ is more. So correct option is (3).

PHXII03:CURRENT ELECTRICITY

356910 Assertion :
Consider the two situations shown in the figure. Potential difference between point $A$ and $B$ , in case $I$ is more as compared to case II.
Reason :
In case $I V_{A} - V_{B} = E + I r$
In case $I I V_{A} - V_{B} = E - I r$
supporting img

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

supporting img
$V_{A} - E - I r = V_{B} \Rightarrow V_{A} - V_{B} = E + I r$
Similarly

$V_{A} - V_{B} = E - I r$ So correct option is (1).

PHXII03:CURRENT ELECTRICITY

356911 A battery of emf 10 $V$ and internal resistance 3 $o h m$ is connected to a resistor. The current in the circuit is 0.5 $A$ . The terminal voltage of the battery when the circuit is closed is

1

10 V

2

0 V

3

1.5 V

4

8.5 V

Explanation:

Terminal voltage $V = E - I r$
$V = 10 - 0.5 \times 3 = 10 - 1.5 = 8.5 V$

KCET - 2006

PHXII03:CURRENT ELECTRICITY

356912 In the given circuit, the terminal potential difference of the cell is
supporting img

1

3 V

2

2 V

3

4 V

4

1.5 V

Explanation:

$4 Ω$ & $4 Ω$ are in the parallel $R^{'} = \frac{4}{2} = 2 Ω$
supporting img

Equivalent resistance of the circuit,
$R_{e q} = 1 + 2 = 3 Ω$
Current, $i = \frac{E}{R_{e q}} = \frac{3}{3} = 1 A$
Potential difference across cell $= V - i r$
$= 3 - 1 \times 1 = 2 V .$

JEE - 2024

PHXII03:CURRENT ELECTRICITY

356913 Assertion :
Terminal voltage of a cell is greater than $e . m . f .$ of the cell, during charging of the cell.
Reason :
The $e . m . f .$ of a cell is always greater than its terminal voltage.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

During charging, the terminal voltage across battery is greater than $E M F$ . Only when delivers current to external circuit $E M F$ is more. So correct option is (3).

PHXII03:CURRENT ELECTRICITY

356910 Assertion :
Consider the two situations shown in the figure. Potential difference between point $A$ and $B$ , in case $I$ is more as compared to case II.
Reason :
In case $I V_{A} - V_{B} = E + I r$
In case $I I V_{A} - V_{B} = E - I r$
supporting img

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

supporting img
$V_{A} - E - I r = V_{B} \Rightarrow V_{A} - V_{B} = E + I r$
Similarly

$V_{A} - V_{B} = E - I r$ So correct option is (1).

PHXII03:CURRENT ELECTRICITY

356911 A battery of emf 10 $V$ and internal resistance 3 $o h m$ is connected to a resistor. The current in the circuit is 0.5 $A$ . The terminal voltage of the battery when the circuit is closed is

1

10 V

2

0 V

3

1.5 V

4

8.5 V

Explanation:

Terminal voltage $V = E - I r$
$V = 10 - 0.5 \times 3 = 10 - 1.5 = 8.5 V$

KCET - 2006

PHXII03:CURRENT ELECTRICITY

356912 In the given circuit, the terminal potential difference of the cell is
supporting img

1

3 V

2

2 V

3

4 V

4

1.5 V

Explanation:

$4 Ω$ & $4 Ω$ are in the parallel $R^{'} = \frac{4}{2} = 2 Ω$
supporting img

Equivalent resistance of the circuit,
$R_{e q} = 1 + 2 = 3 Ω$
Current, $i = \frac{E}{R_{e q}} = \frac{3}{3} = 1 A$
Potential difference across cell $= V - i r$
$= 3 - 1 \times 1 = 2 V .$

JEE - 2024

PHXII03:CURRENT ELECTRICITY

356913 Assertion :
Terminal voltage of a cell is greater than $e . m . f .$ of the cell, during charging of the cell.
Reason :
The $e . m . f .$ of a cell is always greater than its terminal voltage.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

During charging, the terminal voltage across battery is greater than $E M F$ . Only when delivers current to external circuit $E M F$ is more. So correct option is (3).

PHXII03:CURRENT ELECTRICITY

356910 Assertion :
Consider the two situations shown in the figure. Potential difference between point $A$ and $B$ , in case $I$ is more as compared to case II.
Reason :
In case $I V_{A} - V_{B} = E + I r$
In case $I I V_{A} - V_{B} = E - I r$
supporting img

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

supporting img
$V_{A} - E - I r = V_{B} \Rightarrow V_{A} - V_{B} = E + I r$
Similarly

$V_{A} - V_{B} = E - I r$ So correct option is (1).

PHXII03:CURRENT ELECTRICITY

356911 A battery of emf 10 $V$ and internal resistance 3 $o h m$ is connected to a resistor. The current in the circuit is 0.5 $A$ . The terminal voltage of the battery when the circuit is closed is

1

10 V

2

0 V

3

1.5 V

4

8.5 V

Explanation:

Terminal voltage $V = E - I r$
$V = 10 - 0.5 \times 3 = 10 - 1.5 = 8.5 V$

KCET - 2006

PHXII03:CURRENT ELECTRICITY

356912 In the given circuit, the terminal potential difference of the cell is
supporting img

1

3 V

2

2 V

3

4 V

4

1.5 V

Explanation:

$4 Ω$ & $4 Ω$ are in the parallel $R^{'} = \frac{4}{2} = 2 Ω$
supporting img

Equivalent resistance of the circuit,
$R_{e q} = 1 + 2 = 3 Ω$
Current, $i = \frac{E}{R_{e q}} = \frac{3}{3} = 1 A$
Potential difference across cell $= V - i r$
$= 3 - 1 \times 1 = 2 V .$

JEE - 2024

PHXII03:CURRENT ELECTRICITY

356913 Assertion :
Terminal voltage of a cell is greater than $e . m . f .$ of the cell, during charging of the cell.
Reason :
The $e . m . f .$ of a cell is always greater than its terminal voltage.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

During charging, the terminal voltage across battery is greater than $E M F$ . Only when delivers current to external circuit $E M F$ is more. So correct option is (3).

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