Increasing Current in a Light Bulb Circuit: What Happens?

What happens to a light bulb connected to a circuit when the current is increased (assuming the voltage remains the same)?

A. the light bulb shines brighter and power decreases
b. the light bulb shines brighter and the power increases
c. the light bulb gets dimmer and the power decreases
d. the light bulb gets dimmer and the power increases

Answer: The correct answer is Option b.

Explanation:

Power is defined as the amount of work done in a given amount of time. It is also defined as the product of voltage and the current.

Mathematically,

P = VI

where,

P = power

V = voltage

I = current

As the voltage remains constant, and if we increase the current flowing through the light bulb, power will also increase because current is directly proportional to the power of the light bulb.

Increase in the power will increase the brightness of the bulb and vice-versa.

Hence, the correct answer is Option b.