An electric heater is rated 300W 110V. The safety fuse in the circuit can withstand 15 A of current. How many heaters can be saf

Question

3 years ago

9

ely operated in the circuit

1 answer:

EastWind [94] · Answer 1 · 2022-09-26T07:22:55+03:00

The number of heaters that can safely be operated in the circuit is 5 heaters.

From the question given above, the following data were obtained:

Power of heater = 300 W

Voltage (V) = 110 V

Current (I) = 15 A

<h3>Number of heaters = ?</h3>

Next, we shall determine the power that can be drawn from the circuit. This can be obtained as follow:

Voltage (V) = 110 V

Current (I) = 15 A

<h3>Power (P)= ?</h3>

P = IV

P = 15 × 110

Thus, the power that can be drawn from the circuit is 1650 W

Finally, we shall determine the number of heaters that can be operated in the circuit. This can be obtained as follow:

Power of heater = 300 W

Power of Circuit = 1650 W

<h3>Number of heaters = ?</h3>

$Number \: of \: heaters \: = \frac{power \: of \: circuit}{power \: of \: heater} \\ \\ = \frac{1650}{300} \\ \\ = 5.5$

From the calculation made above, the number of heaters that can be operated safely in the circuit is 5 heaters.