Current Electricity

Related Questions

• In the given figure, potential difference between A and B is

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• Three electric bulbs of rating 60W each are joined in series and then connected to electric mains. The power consumed by these three bulbs will be

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• If $n,\,e,\,\tau$ and m respectively represent the density, charge relaxation time and mass of the electron, then the resistance of a wire of length $l$ and area of cross-section $A$ will be

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• Two sources of equal emf are connected to an external resistance R. The internal resistances of the two sources are ${R_1}$ and ${R_2}\,({R_2} > {R_1})$. If the potential difference across the source having internal resistance ${R_2}$ is zero, then

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• The resistance of a conductor increases with

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