Question

A 60 `Omega` electric heater is connected to a 200 V, 50 Hz mains supply. The peak value of electric current flowing in the circuit is approximately ______.

पर्याय

• 4.7 A

• 5.0 A

• 7.1 A

• 10 A

Answer 1

A 60 `Omega` electric heater is connected to a 200 V, 50 Hz mains supply. The peak value of electric current flowing in the circuit is approximately 4.7 A.

Explanation:

` "i"_"rms" = "e"_"rms"/"R" = 200/60 =3.33 "A"`

`"i"_0 =sqrt(2)  "i"_"rms" = 1.414 xx 3.33 ≈ 4.7  "A"`