Current Electricity

Related Questions

• Two resistors of resistance ${R_1}$ and ${R_2}$ having .. are connected in parallel. For equivalent resistance $R$, the correct statement is

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• A galvanometer of 10 ohm resistance gives full scale deflection with 0.01 ampere of current. It is to be converted into an ammeter for measuring 10 ampere current. The value of shunt resistance required will be

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• The maximum power drawn out of the cell from a source is given by (where r is internal resistance)

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• An ammeter reads upto 1 ampere. Its internal resistance is 0.81 ohm. To increase the range to 10 A the value of the required shunt is

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• When there is an electric current through a conducting wire along its length, then an electric field must exist

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