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A lamp is marked "60 W, 240 V" and is connected to a mains supply.
PHYSICS · Multi-part · A Level · Physics · Electricity · Electricity
Problem
A lamp is marked "60 W, 240 V" and is connected to a
240
V
240\,\text{V}
240
V
mains supply. (a) Calculate the resistance of the lamp when it is glowing at its rated conditions. (b) Find the current drawn from the mains by the lamp at its rated voltage.
Related theory
Ohm's Law
Ohm's Law (Macroscopic)
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