Physics

Physics

Problem

An AC source of frequency

50\,\text{Hz}

is applied to a series combination of

R = 40\,\Omega

,

L = 0.20\,\text{H}

and

C = 100\,\mu\text{F}

. The approximate value of the phase angle

\phi

between the supply voltage and current is a)

+67^{\circ}

(current lags) b)

0^{\circ}

c)

+38^{\circ}

(current lags) d)

-38^{\circ}

(current leads)

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