A 100 W, 100 V bulb is to be supplied from 220 V, 50Hz supply ___

A 100 W, 100 V bulb is to be supplied from 220 V, 50Hz supply.

Which of the following arrangements is preferable?

A. Additional pure inductance in series with lamp.
B. Additional resistance in series with the lamp.
C. Additional inductance and capacitance in series with the lamp.
D. none of these answers

Show Answer

Answer: A

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