A filament bulb (500 W, 100 V) is to be used in a 230 V main supply. When a resistance R…
Physics · Class 12 · CBSE — Current Electricity
A filament bulb (500 W, 100 V) is to be used in a 230 V main supply. When a resistance R is connected in series, it works perfectly and the bulb consumes 500 W. The value of R is:
- 26 \(\Omega\)
- 13 \(\Omega\)
- 230 \(\Omega\)
- 46 \(\Omega\)
Answer
(A) 26
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