A resistor is connected in series with a inductor

PHYSICS · Multi-part · CBSE · Physics · Alternating Current · Alternating Current

Problem

A 300 Ω300\ \Omega resistor is connected in series with a 0.800 H0.800\ \text{H} inductor. The voltage across the resistor as a function of time is VR=(2.50 V)cos⁡[(950 rad/s)t]V_R=(2.50\ \text{V})\cos[(950\ \text{rad/s})t]. (a) Derive an expression for the circuit current. (b) Determine the inductive reactance of the inductor. (c) Derive an expression for the voltage VLV_L across the inductor.

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