Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

A series AC circuit has a resistance 8 Ω and a reactance of 6 Ω. The impedance of the circuit is :

Options:

14 Ω

10 Ω

$\frac{35}{6} Ω$

7 Ω

Correct Answer:

10 Ω

Explanation:

The correct answer is Option (2) → 10 Ω

The impedance (Z) of an AC circuit with resistance (R) and reactance (X) is -

$Z=\sqrt{R^2+X^2}$

Given,

$X=6Ω$ and $R=8Ω$

$Z=\sqrt{8^2+6^2}=10Ω$