Electric power is inversely proportional to (1) Current (2) Voltage (3) Resistance (4) Temperature.

Answer: Resistance

From Ohm’s law

V = IR……………………………(1)

The relationship between the power and resistance can be expressed as

P = I2R……………………………………(2)

Where

  • P is the Power measured in watt
  • R is the resistance measured in ohms
  • I is the electric current measured in coulombs

Equation (1) can also be written as

P = v2/R……………………………………..(3)

Where,

  • P is the Power measured in watt
  • R is the resistance measured in ohms
  • V is the electric potential measured in volts

By Ohm’s Law, if resistance (R) and temperature remain constant, then current (I) is directly proportional to the voltage (V). As per the power formula, if the power stays the same then current is inversely proportional to the voltage.

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