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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Medium
1 of 1
Application
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For driving a current of 3 Afor 5 minutes in an electric circuit, of work is to be done. Find the emf of the source in the circuit.
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Correct option: C
Option C (1.0 V) is correct because the emf is the work done per unit charge, calculated by dividing the work by the total charge.
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Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance , which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by is
Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance , which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by is