Calculate the current through a 60 W lamp rated for 250 V. If the line voltage falls to 200 V, how is power consumed by the lamp affected?

Given, Power (P) = 60 W Voltage (V) = 250 V We know that, Power (P) = VI Substituting the values in the formula above, we get, Hence, current through the lamp = 0.24 A Power consumed when voltage is 200 V = ? Resistance of lamp (R) = Substituting the values in the formula, we get, From relation, P = Substituting the values in the formula, we get, Hence, power consumed reduces to 38.4 W

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Physics

Calculate the current through a 60 W lamp rated for 250 V. If the line voltage falls to 200 V, how is power consumed by the lamp affected?

Current Electricity

Related Questions

An electric bulb of resistance 500 Ω draws current 0.4 A from the source. Calculate: (a) the power of bulb and (b) the potential difference at it's end.

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