EASY
12th Odisha Board
IMPORTANT
Earn 100

Explain the meaning of wattful and wattless components of AC.

Important Questions on Alternating Currents

EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 16
Which physical quantity is expressed in kilo volt-ampere in connection with Ac circuit?
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 17
Find an expression for the average power expended in a resistor in a quarter cycle of AC.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 18
Graphically show the variation of inductive reactance and capacitive reactance with the frequency of AC.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 19
Mention the variation of resistance, capacitive reactance and inductive reactance with frequency of AC.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 20
Distinguish between resistance and reactance in an AC circuit.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 21
Write the expression for the impedance of an LCR circuit and hence show the condition under which its impedance equals its resistance.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 22
Explain which is more dangerous for human body 220 V AC or 220 V DC.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 23
Explain the meaning of lagging current and leading current in case of AC.