EASY
12th Odisha Board
IMPORTANT
Earn 100

Graphically show the variation of inductive reactance and capacitive reactance with the frequency 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 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.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 24
Explain the necessity of transformer in long range transmission of power.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 25
A coil having inductance of 1 H is connected to an AC source of frequency 50 Hz. What would be the inductive reactance of the coil?
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 10 - Alternating Currents>MODEL QUESTIONS>Q 26
A capacitor of capacity 5 μF is connected to an AC source of frequency 1000 Hz. What would be the capacitive reactance of the coil?