A resistor and inductor are connected in series acrossan ac generator. The emf of the generator is given byv(t) = V0cos ωt, where V0 = 120 V andω = 120π rad/s; also, R = 400 Ω and L = 1.5 H. (a)What is the impedance of the circuit? (b) What is theamplitude of the current through the resistor? (c) Write anexpression for the current through the resistor. (d) Writeexpressions representing the voltages across the resistorand across the inductor

A resistor and inductor are connected in series acrossan ac generator. The emf of the generator is given byv(t) = V0cos ωt, where V0 = 120 V andω = 120π rad/s; also, R = 400 Ω and L = 1.5 H. (a)What is the impedance of the circuit? (b) What is theamplitude of the current through the resistor? (c) Write anexpression for the current through the resistor. (d) Writeexpressions representing the voltages across the resistorand across the inductor

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Question

A resistor and inductor are connected in series across
an ac generator. The emf of the generator is given by
v(t) = V0
cos ωt, where V0 = 120 V and
ω = 120π rad/s; also, R = 400 Ω and L = 1.5 H. (a)
What is the impedance of the circuit? (b) What is the
amplitude of the current through the resistor? (c) Write an
expression for the current through the resistor. (d) Write
expressions representing the voltages across the resistor
and across the inductor

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