Latest IIT-JEE Aptitude Question SOLUTION: The supply voltage to a room is 120 V. The resistance of the lead wires is 6Ω. A 60 W bulb is already switched on. What is the decrease of voltage across the bulb, when a 240 W he

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(#M40027797) IIT-JEE question 2011 question Keep an EYE

The supply voltage to a room is 120 V. The
resistance of the lead wires is 6Ω. 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 ?
(1) 13.3 V (2) 10.04 V
(3) zero V (4) 2.9 V

Asked In IIT-JEE MAN (11 years ago)

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