Which of the following gives the magnitude of impedance of a resistor connected in…

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

Which of the following gives the magnitude of impedance

Z

of a resistor

R

connected in series with an inductor whose inductive reactance is

X_L

? (a)

Z=R+X_L

(b)

Z=\sqrt{R^{2}-X_L^{2}}

(c)

Z=\sqrt{R^{2}+X_L^{2}}

(d)

Z=\sqrt{R^{2}+4X_L^{2}}