Question

The brightness of light emitted by a bulb is ovserved to decrease when an electric heater is connected in seeies with it. Suggest the likely reason for this observations

Answer 1

Answer:

Explanation:

The brightness of bulb decreases due to the drop in potential as the electric heater is connected in series with it.It has some resistance,hence current in the circuit decreases, leading to decrease in brightness of bulb.

Hope you understood

Answer 2

Answer:

Hey watch the above pic for ur answer of the question