Q. No.
A wire of a certain material is stretched slowly by ten percent, its new resistance and specific resistance become respectively :
1. 1.2 times, 1.1 times
2. 1.21 times, same
3. both remain the same
4. 1.1 times, 1.1 times
1. 1.2 times, 1.1 times
2. 1.21 times, same
3. both remain the same
4. 1.1 times, 1.1 times
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2. current
3. drift velocity
4. electric field
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2. 0.1 A
3. 2.0 A
4. 1.0 A
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The power dissipated across the 8Ω resistor in the circuit shown here is 2 W. The power dissipated in watt units across the 3 Ω resistor is :
1. 2.0
2. 1.0
3. 0.5
4. 3.0
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Consider the following two statements :
(A) Kirchhoff’s junction law follows from the conservation of charge.
(B) Kirchhoff’s loop law follows from the conservation of energy.
Which of the following is correct?
1. Both (A) and (B) are wrong
2. (A) is correct but (B) is wrong
3. (A) is wrong and (B) is correct
4. Both (A) and (B) are correct.
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1. 8 V
2. 10 V
3. 2 V
4. 4 V
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1. 6.3 min
2. 8.4 min
3. 12.6 min
4. 4.2 min
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