Alight bulb has a resistance of 360 . what is the current in the bulb when it has a potential difference of 120 v across it?

a 0.33 a
b 3 a
c 480 a
d 43,200 a

The correct answer is option A. 0.33A.

According to the Ohm's Law, The current across the two points is directly propotional to the voltage and the equation is given below.

V ∝ i      (v is voltage or potential difference and i is current)

V = iR    ( Resistance)

Resistance is a constant, which is independent of the value of the current.

Given,

R = 360

V= 120 V

Putting value of R and V in V =iR

120 = 360 i

Hence, the current in the bulb will be 0.33 A (ampere).

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy