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A 100 Omega iron is connected to 220 V, ...

A `100 Omega` iron is connected to 220 V, 50 wall plug. What is (i) peak pot. Diff. (ii) average pot.diff. over half cycle (iii) rms current ?

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Here, `R = 100 Omega, E_(v) = 220 V`,
`v = 50 c y c l e//s`
(i) Peak pot.diff.,
`E_(0) = sqrt2 E_(v) = 1.414 xx 220 = 311 V`
(ii) Average pot.diff. over half cycle,
(iii) rms current,` I_(v) = (E_(v))/(R ) = (220)/(100) = 2.2 A`
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