Question

What happens to the brightness of the light bulbs in a series circuit with four light bulbs when you add four more lights bulbs .Given the supply of current remains the same. *

Answer 1

Placing cells in series increases the voltage in the circuit by 1.5 V for each cell. Increasing the voltage increases the brightness of the bulb. When a bulb in a series circuit is unscrewed all bulbs in the circuit go out. Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs

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