Current Electricity

Related Questions

• $A\,\,{5^o}C$ rise in the temperature is observed in a conductor by passing some current. When the current is doubled, then rise in temperature will be equal to

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• The electric bulbs have tungsten filaments of same length. If one of them gives 60 watt and other 100 watt, then

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• The current between B and D in the given figure is

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• Four resistances $10 \Omega$, $5 \Omega$, $7 \Omega$ and $3 \Omega$ are connected so that they form the sides of a rectangle AB, BC, CD and DA respectively. Another resistance of $10 \Omega$ is connected across the diagonal AC. The equivalent resistance between A and B is

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• In an electric heater 4 amp current passes for 1 minute at potential difference of 250 volt, the power of heater and energy consumed will be respectively

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