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Electrostatic Potential And Capacitance

Question
CBSEENPH12037950

A 100 Ω resistor is connected to a 220 V, 50 Hz ac supply.
What is the rms value of current in the circuit?

Solution

Given, 

Resistance, R = 100 ΩVoltage applied, V = 220 V Frequency of the AC supply, f = 50 Hz 

 ω = 2π f = 2 ×3.14 × 50 = 314 

 Using the relation
                    Ieff = VeffR
Putting values,
                       Ieff =220100 = 2.2 A

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