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In one minute a total charge of 108 C flows through a bulb when it is connected to a cell. Find the electric current flowing through the bulb. |
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Answer» We know that electric current is defined as the rate of flow of charge in a circuit. It is given that the charge flowing through the bulb in 1 minute (= 60 s) is 180 C. Therefore, the charge that flows in `1s=(180 C)/(60 S)=3 C s^(-1)=3A` We may use the formula, `I=(Q)/(t)`, where I is the electric current, Q is the charge that flows in t seconds. Thus, `I=(180C)/(60S)=3 C s^(-1)=3A` `:.` The electric current flowing in the bulb = 3A. |
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