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Alternating voltage in any alternating current circuit is V = 50 sin (157 t + ϕ) V, then find out the:

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Alternating voltage in any alternating current circuit is V = 50 sin (157 t + ϕ) V, then find out the:
(i) root mean square value of alternating voltage.
(ii) frequency of the alternating voltage.

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Given V = 50sin (157t + ϕ)
Compare V = Vm (sin ωt + ϕ)
∴ Vm = 50 volt and to = 157 rad/sec
(i) Root mean square value of voltage

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