Question

A 15 A circuit breaker trips in the home when the current through it, reaches 15 A. The minimum number of 100-watt light bulbs operated at 120 volts in the home is ______.

Options

• 15.00

• 16.00

• 17.00

• 18.00

Answer 1

A 15 A circuit breaker trips in the home when the current through it, reaches 15 A. The minimum number of 100-watt light bulbs operated at 120 volts in the home is 18.00.

Explanation:

Current through one bulb = `100/120`

15 = `"N" xx 100/120`

N = 18

Where N number of bulbs.