Electrical Instruments
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PHXII03:CURRENT ELECTRICITY

357363 The ratio of the amounts of heat developed in the four arms of a balance Wheatstone bridge, when the arms have resistances \(P=100\, \Omega, Q=10\, \Omega, R=300\, \Omega\) and \(S=30\, \Omega\) respectively is

1 \(3: 30: 1: 10\)
2 \(30: 3: 10: 1\)
3 \(30: 10: 1: 3\)
4 \(30: 1: 3: 10\)
PHXII03:CURRENT ELECTRICITY

357364 Assertion :
In the following circuit \(e.m.f.\) is \(2\,V\) internal resistance of the cell is \(1\,\Omega \) and \(R=1 \Omega\) the reading of the voltmeter is \(1\,V\).
supporting img
Reason :
Internal resistance of cell does not play any role to find the reading.

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.
PHXII03:CURRENT ELECTRICITY

357365 The equivalent resistance between \({A}\) and \({B}\) of the circuit shown in the given figure is
supporting img

1 \(9\,\Omega \)
2 \(4\,\,\Omega \)
3 \(2\,\Omega \)
4 \(1\,\Omega \)
PHXII03:CURRENT ELECTRICITY

357366 In the circuit in fig. if no current flows through the galvanometer when the key \(k\) is closed, the bridge is balanced. The balancing condition for bridge is
supporting img

1 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_1}}}{{{R_2}}}\)
2 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_2}}}{{{R_1}}}\)
3 \(\frac{{C_1^2}}{{C_2^2}} = \frac{{R_1^2}}{{R_2^2}}\)
4 \(\frac{{C_2^1}}{{C_2^2}} = \frac{{{R_2}}}{{{R_1}}}\)
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PHXII03:CURRENT ELECTRICITY

357363 The ratio of the amounts of heat developed in the four arms of a balance Wheatstone bridge, when the arms have resistances \(P=100\, \Omega, Q=10\, \Omega, R=300\, \Omega\) and \(S=30\, \Omega\) respectively is

1 \(3: 30: 1: 10\)
2 \(30: 3: 10: 1\)
3 \(30: 10: 1: 3\)
4 \(30: 1: 3: 10\)
PHXII03:CURRENT ELECTRICITY

357364 Assertion :
In the following circuit \(e.m.f.\) is \(2\,V\) internal resistance of the cell is \(1\,\Omega \) and \(R=1 \Omega\) the reading of the voltmeter is \(1\,V\).
supporting img
Reason :
Internal resistance of cell does not play any role to find the reading.

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.
PHXII03:CURRENT ELECTRICITY

357365 The equivalent resistance between \({A}\) and \({B}\) of the circuit shown in the given figure is
supporting img

1 \(9\,\Omega \)
2 \(4\,\,\Omega \)
3 \(2\,\Omega \)
4 \(1\,\Omega \)
PHXII03:CURRENT ELECTRICITY

357366 In the circuit in fig. if no current flows through the galvanometer when the key \(k\) is closed, the bridge is balanced. The balancing condition for bridge is
supporting img

1 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_1}}}{{{R_2}}}\)
2 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_2}}}{{{R_1}}}\)
3 \(\frac{{C_1^2}}{{C_2^2}} = \frac{{R_1^2}}{{R_2^2}}\)
4 \(\frac{{C_2^1}}{{C_2^2}} = \frac{{{R_2}}}{{{R_1}}}\)
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PHXII03:CURRENT ELECTRICITY

357363 The ratio of the amounts of heat developed in the four arms of a balance Wheatstone bridge, when the arms have resistances \(P=100\, \Omega, Q=10\, \Omega, R=300\, \Omega\) and \(S=30\, \Omega\) respectively is

1 \(3: 30: 1: 10\)
2 \(30: 3: 10: 1\)
3 \(30: 10: 1: 3\)
4 \(30: 1: 3: 10\)
PHXII03:CURRENT ELECTRICITY

357364 Assertion :
In the following circuit \(e.m.f.\) is \(2\,V\) internal resistance of the cell is \(1\,\Omega \) and \(R=1 \Omega\) the reading of the voltmeter is \(1\,V\).
supporting img
Reason :
Internal resistance of cell does not play any role to find the reading.

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.
PHXII03:CURRENT ELECTRICITY

357365 The equivalent resistance between \({A}\) and \({B}\) of the circuit shown in the given figure is
supporting img

1 \(9\,\Omega \)
2 \(4\,\,\Omega \)
3 \(2\,\Omega \)
4 \(1\,\Omega \)
PHXII03:CURRENT ELECTRICITY

357366 In the circuit in fig. if no current flows through the galvanometer when the key \(k\) is closed, the bridge is balanced. The balancing condition for bridge is
supporting img

1 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_1}}}{{{R_2}}}\)
2 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_2}}}{{{R_1}}}\)
3 \(\frac{{C_1^2}}{{C_2^2}} = \frac{{R_1^2}}{{R_2^2}}\)
4 \(\frac{{C_2^1}}{{C_2^2}} = \frac{{{R_2}}}{{{R_1}}}\)
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PHXII03:CURRENT ELECTRICITY

357363 The ratio of the amounts of heat developed in the four arms of a balance Wheatstone bridge, when the arms have resistances \(P=100\, \Omega, Q=10\, \Omega, R=300\, \Omega\) and \(S=30\, \Omega\) respectively is

1 \(3: 30: 1: 10\)
2 \(30: 3: 10: 1\)
3 \(30: 10: 1: 3\)
4 \(30: 1: 3: 10\)
PHXII03:CURRENT ELECTRICITY

357364 Assertion :
In the following circuit \(e.m.f.\) is \(2\,V\) internal resistance of the cell is \(1\,\Omega \) and \(R=1 \Omega\) the reading of the voltmeter is \(1\,V\).
supporting img
Reason :
Internal resistance of cell does not play any role to find the reading.

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.
PHXII03:CURRENT ELECTRICITY

357365 The equivalent resistance between \({A}\) and \({B}\) of the circuit shown in the given figure is
supporting img

1 \(9\,\Omega \)
2 \(4\,\,\Omega \)
3 \(2\,\Omega \)
4 \(1\,\Omega \)
PHXII03:CURRENT ELECTRICITY

357366 In the circuit in fig. if no current flows through the galvanometer when the key \(k\) is closed, the bridge is balanced. The balancing condition for bridge is
supporting img

1 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_1}}}{{{R_2}}}\)
2 \(\frac{{{C_1}}}{{{C_2}}} = \frac{{{R_2}}}{{{R_1}}}\)
3 \(\frac{{C_1^2}}{{C_2^2}} = \frac{{R_1^2}}{{R_2^2}}\)
4 \(\frac{{C_2^1}}{{C_2^2}} = \frac{{{R_2}}}{{{R_1}}}\)
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