Question 28:
An electric fan runs from the 230 V mains. The current flowing through it is 0.4 A. At what rate is electrical energy transferred by the fan ?
Lakhmir Singh Physics Class 10
Answers
Answered by
1
potential difference : 230 v
current : 0.4 A
rate at which energy flow = ?
Energy = power ,
power = potential difference × current
so, p = 230 × 0.4
= 92
Answered by
1
Answer:
92 J/s
Explanation:
Voltage of the fan = V = 230V (Given)
Current flowing through the fan = I = 0.4 A (Given)
The rate at which electric energy is transferred is known as power.
Thus, as per the formula of power -
P = V x I
= 230 x 0.4
= 92
= 92 J/s
Therefore, the rate at which the electrical energy transferred by the fan is 92 J/s
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