Current Electricity

Related Questions

• Forty electric bulbs are connected in series across a 220 V supply. After one bulb is fused, the remaining 39 are connected again in series across the same supply. The illumination will be

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• In the following Wheatstone bridge $P/Q = R/S$. If key K is closed, then the galvanometer will show deflection

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• An electric bulb is rated 60W, 220V. The resistance of its filament is

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• A potentiometer circuit shown in the figure is set up to measure e.m.f. of a cell E. As the point P moves from X to Y the galvanometer G shows deflection always in one direction, but the deflection decreases continuously until Y is reached. In order to obtain balance point between X and Y it is necessary to

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• Two electric bulbs whose resistances are in the ratio of 1 : 2 are connected in series. The powers dissipated in them have the ratio

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