EASY
12th ICSE
IMPORTANT
Earn 100

What is the self-inductance of a coil if its inductive reactance is 12.56Ω.  At a frequency of 200 Hz?

Important Questions on Alternating Current

EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 9
At what frequency will a 2 H inductor have a reactance of 4000 Ω ?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 10
A pure inductor has a reactance of 22 Ω at 200 Hz AC line. What would be its reactance at 50 Hz line?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 11
A pure inductor of 0.5 H carries an AC of 0.2 A and of frequency 50 Hz. What will be the voltage across the ends of the inductor and the phase difference between the voltage and the current?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 12
A pure inductance of 1.0 H is connected across a 110 V-70 Hz source. Find reactance, current and peak value of current.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 13
A capacitor of 50 pF is connected to an AC frequency 1 kHz. Calculate its reactance.
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 14
A 2.0 μF capacitor is connected to a 220 V 50 Hz AC source. Calculate the reactance of the capacitor, the current flowing in the circuit and mention the phase relationship between the current and the voltage.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 15
Find the frequency at which the capacitive reactance of a 1.0 μF capacitor equals the inductive reactance of a 1.0 H coil.
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 12 - Alternating Current>QUESTIONS>Q 16

A coil has an inductance of 1 H. At what frequency will it have a reactance of 3140 Ω? What capacitance will have the same reactance at that frequency?