In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60W bulb for use in India is R, the resistance of a 60W bulb for use in USA will be
A. R
B. 2R
C. \(\frac { R }{ 4 }\)
D. \(\frac { R }{ 2 }\)
Answer:C
In India electricity is supplied for domestic use at 220 V. It is supplied at 110 V in USA. If the resistance of a 60W bulb for use in India is R, the resistance of a 60W bulb for use in USA will be
A. R B. 2R C. \(\frac { R }{ 4 }\) D. \(\frac { R }{ 2 }\)