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A rms voltage of 120v produces a maximum current of 2.1a in a certain resistor. Find the resistance of the resistor. What is the average power through this resistor?

Respuesta :

shaikhmohd0119

the resistance is 80.8Ω and average power 178.2 W

a) the value of resistance is given as,

R=rms voltage / rms current

and rms current = 2.1/√2

= I°/√2

rms current = 2.1/√2

rms current = 1.48

therefore R = 120/1.48

=80.4Ω

b) average power is product of rms current and rms voltage

P=120× 1.48

=178.2 W

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