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प्रश्न
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उत्तर
Work done = charge x potential difference
Or, W = 5 x 1 = 5 J
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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.
What do the letters p.d. stand for?
A current of 200 mA flows through a 4 kΩ resistor. What is the p.d. across the resistor?
How does the resistance of a metallic wire depend on its temperature? Explain with reason.
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the resistance of a filament lamp when a voltage of 3 V across it causes a
current of 0.5 A?
A current of 100 mA. flows through a wire. The charge on an electron is 1.6 × 10-19 C. Find the number of electrons passing per second through the cross-section of the conductor.
Two bulbs are marked 100 W, 220 V and 60 W, 110 V. Calculate the ratio of their resistances.
A 10 m long wire of a particular material is of reistance 5Ω What will be the resistance of 5m long wire of same material and the same thickness.
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 ______.
What does the positive and negative sign of potential convey?
