What will be the power required by a bulb load having a resistance of 50 Ω if the voltage applied is 220 V?

This question was previously asked in
RRB ALP Electronics Mechanic 21 Jan 2019 Official Paper (Shift 3)
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  1. 828 W
  2. 1068 W
  3. 968 W
  4. 200 W

Answer (Detailed Solution Below)

Option 3 : 968 W
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Detailed Solution

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Concept

The power of the bulb is given by:

where, P = Power

V = Voltage

R = Resistance

Calculation

Given, V = 200 volts

R = 50 Ω

P = 968 W

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