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प्रश्न
Define the following:
Potential difference
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उत्तर
Potential difference: The potential difference between two points may be defined as the work done in moving a unit positive charge from one point to the other.
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संबंधित प्रश्न
The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:
| V (volts) | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 |
| I (amperes) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 |
Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor.
What is the unit of electric charge?
What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of battery to the other?
The other name of potential difference is:
A resistance of 20 ohms has a current of 2 amperes flowing in it. What potential difference is there between its ends?
Define the unit of resistance (or Define the unit "ohm").
What p.d. is needed to send a current of 6 A through an electrical appliance having a resistance of 40 Ω?
In the circuit shown below:
The potential difference across the 3 Ω resistor is:
How is the electric potential difference between the two points defined? State its S.I. unit.
Point out two differences between e.m.f. and potential difference as applied to electric circuits.
