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प्रश्न
State the S.I. unit of electric potential.
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उत्तर
S.I. unit of potential is volt (v).
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संबंधित प्रश्न
Which of the following statements correctly defines a volt?
(a) a volt is a joule per ampere.
(b) a volt is a joule per coulomb.
Which device is used to measure p.d?
The p.d. across a lamp is 12 V. How many joules of electrical energy are changed into heat and light when:
a charge of 5 C passes through it?
Keeping the potential difference constant, the resistance of a circuit is doubled. The current will become:
If the potential difference between the end of a wire of fixed resistance is doubled, by how much does the electric power increase?
A current of 0.2 A flows through a conducting wire for 5 minutes. How much charge will flow?
An electric bulb draws 0.5 A current at 3.0 V. Calculate the resistance of the filament of the bulb.
Conceptual question.
A bird sitting on a high power electric line is still safe. How?
Define electric potential and potential difference.
Two charged spherical conductors of radius R1 and R2 are connected by a wire. Then the ratio of surface charge densities of the spheres `(σ_1//σ_2 )` is ______.
