A household light bulb has the following marking: 100W/120V. a) Find is the resi

Question

A household light bulb has the following marking: 100W/120V.

a)     Find is the resistance of its filament. (5 pts)

In order to use the bulb in Europe where the standard voltage is 220 V and the frequency is 50.0 Hz, a student is planning to connect the bulb in series to an inductor L or a capacitor C.

b)    Find the value of the inductance L that he should prepare. (5 pts)

c)     Find the value of the capacitance C that he should prepare. (5 pts)

d)    Find the angle f between the instantaneous current and voltage in each case. Indicate if current leads or lags relative to voltage. (5 pts)

e)     If the highest voltage the capacitor can hold is 150 V, will it work in Europe? (10 pts extra credit)

Explanation / Answer

a.r=v^2/p=144

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