EASY
NEET
IMPORTANT
Earn 100

The impedance of a circuit, when a resistance R and an inductor of inductance L are connected in series in an AC circuit of frequency f, is

62.5% studentsanswered this correctly

Important Questions on Alternating Current

EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 44
A capacitor of capacity C has reactance X. If capacitance and frequency become double then reactance becomes X2α. Find value of α.
EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 45
The coil of choke in a circuit : 
EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 46
The inductive reactance of an inductive coil with 1π henry and 50 Hz :- 
EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 48
An inductance of 0.4 Henry and a resistance of 100 ohm are connected to a A.C. voltage source of 220 V and 50 Hz. Then find out the phase difference between the voltage and current flowing in the circuit : 
EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 49
A capacitor of capacitance 100 μF and resistance of 100 Ω is connected in series with AC supply of 220 V, 50 Hz. The current leads the voltage by-
EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 50
If the current through an inductor of inductance L is given by I=I0sinωt, then the voltage across the inductor will be:- 
MEDIUM
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 51
There is a 5Ω resistance in an A.C., circuit. Inductance of 0.1 H is connected with it in series. If equation of A.C. e.m.f. is 5 sin 50 t then the phase difference between current and e.m.f. is :- 
EASY
NEET
IMPORTANT
Beta Question Bank for Medical: Physics>Chapter 28 - Alternating Current>Exercise (Conceptual Questions)>Q 53
200 Ω resistance and 1 H inductance are connected in series with an A.C. circuit. The frequency of the source is 2002π. Then phase difference in between V and I will be: