Current Electricity Part 1

Section: Physics

Question : 58 of 100

Marks: +1, -0

The supply voltage to a room is 120 V. The resistance of the lead wires is 6 Ω. A 60 W bulb is already switched on. What is the decrease of voltage across the bulb, when a 240 W heater is switched on in parallel to the bulb?

[Main 2013]

2.9 Volt
13.3 Volt
10.04 Volt
zero volt

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