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प्रश्न
State the relation between potential difference, work done and charge moved.
उत्तर
The potential difference between two points in an electric circuit is equal to the amount of work done in moving a unit charge from one point to another point.
`"Potential difference (V)"="Work done (W)"/"Quantity of charge moved (Q)"`
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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.
Name the law which relates the current in a conductor to the potential difference across its ends.
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A current of 200 mA flows through a 4 kΩ resistor. What is the p.d. across the resistor?
Calculate the power used in the 2 Ω resistor in each of the following circuits: a 4 V battery in parallel with 12 Ω and 2 Ω resistors.
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Define the following:
Potential difference
