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. \(\frac{\mathbf{R}}{4}\)
D. \(\frac{\mathbf{R}}{2}\)
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. \(\frac{\mathbf{R}}{4}\) D. \(\frac{\mathbf{R}}{2}\)