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Question
Out of the two balls mark 25 Watt and 100 Watt which has higher resistance? Also explain your answer
Out of the two balls mark 25 Watt and 100 Watt which has higher resistance? Also explain your answer
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Solution
P = V^2/R and as V is constant (assume 120 V), P is higher when R is smaller. A 100 W bulb will have 1/4 of the resistance of a 25 W bulb.
In other words, the answer is 25 W
P = V^2/R and as V is constant (assume 120 V), P is higher when R is smaller. A 100 W bulb will have 1/4 of the resistance of a 25 W bulb.
In other words, the answer is 25 W
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