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Electricity and Magnetism
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Current Electricity
Easy Questions
Electricity and Magnetism
Current Electricity
Moving Charges and Magnetism
Magnetism and Matter
Electromagnetic Induction
Alternating Current
Electromagnetic Waves
In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in India is R, the resistance of a 60 W bulb for use in USA will be
R/2
R
2R
R/4
Correct Option:
D
R' =
(110)²
=
R
60
4
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