A) 0.18 A
B) 0.21 A
C) 0.25 A
D) 0.30 A
Correct Answer: B
Solution :
[b] Resistance of lamp, \[R=\frac{{{V}^{2}}}{P}\] \[=\frac{240\times 240}{60}\] \[=960\,\Omega \] Current through the lamp when used at 200 V is given by, \[I=\frac{200}{960}\] = 0.21 A
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