Current Electricity

Related Questions

• There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel,

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• The potential drop across the $3\Omega$ resistor is

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• Two electric bulbs whose resistances are in the ratio of $1 : 2$ are connected in parallel to a constant voltage source. The powers dissipated in them have the ratio

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• Consider the circuit shown in the figure. The current ${I_3}$ is equal to

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• In a wire of circular cross-section with radius r, free electrons travel with a drift velocity V when a current I flows through the wire. What is the current in another wire of half the radius and of the same material when the drift velocity is 2V

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