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प्रश्न
How is the electric potential difference between the two points defined? State its S.I. unit.
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उत्तर
The potential difference between two points is equal to the work done in moving a unit positive charge from one point to the other.
It's S.I. unit is Volt.
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संबंधित प्रश्न
A battery of emf 12 V and internal resistance 2 Ω is connected with two resistors A and B of resistance 4 Ω and 6 Ω respectively joined in series.

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1) Current in the circuit
2) The terminal voltage of the cell
3) The potential difference across 6Ω Resistor
4) Electrical energy spent per minute in the 4Ω resistor.
How much work is done when one coulomb charge moves against a potential difference of 1 volt?
How much energy is transferred by a 12 V Power supply to each coulomb of charge which it moves around a circuit?
State whether a voltmeter has a high resistance of a low resistance. Give reason for your answer.
A current of 5 amperes flows through a wire whose ends are at a potential difference of 3 volts. Calculate the resistance of the wire.
Ohm's law state a relation between potential difference and ___________.
Why do electricians wear rubber hand gloves while working with electricity?
Find out the following in the electric circuit given in Figure
- Effective resistance of two 8 Ω resistors in the combination
- Current flowing through 4 Ω resistor
- Potential difference across 4 Ω resistance
- Power dissipated in 4 Ω resistor
- Difference in ammeter readings, if any.

Name the instrument which is used to measure the potential difference.
Electric potential is a measure of the ______ on the unit positive charge to bring it to that point against all electrical forces.
