EASY
12th Odisha Board
IMPORTANT
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What is the RMS value if the peak value of alternating current is 5 A?

Important Questions on Alternating Currents

EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 28
In what type of AC circuit, the current lags behind the voltage?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 29
What is the phase difference between current and emf in a purely capacitive circuit?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 30
Can the power factor of an AC circuit be one?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 31
What is the phase difference between the voltage and current across the inductance and a capacitor in an AC circuit?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 32
What is the phase difference between the voltage and current in a LCR series circuit at resonance?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 33
The instantaneous voltage from an AC source is given by E=300 sin314t. What is the RMS voltage of the source?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 34
What is the average value of AC voltage V=V0 sinωt?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 35
An electrical element x is connected to an alternating voltage source, has a current through it leading the voltage by π2 rad. Identify x and write an expression for its reactance.