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A 100 Omega resistor is connected to a 2...

A 100 `Omega` resistor is connected to a 200V, 50 Hz ac supply.
(a) What is the rms value of current in the circuit ?
(b) What is the net power consumed over a fully cycle ?

Text Solution

Verified by Experts

(a) `I_(rms) = ( V_(rms)) /( |Z|)`
`= ( V_(rms))/( R ) ( :. ` Here `|Z |= R )`
`= ( 220)/( 100)`
`= 2.2 A`
(b) `P = ( V_(rms)^(2))/ (R )` ( For purely resistive ac circuit )
`((220)^(2))/( 100)`
`:. P = 484 W`
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