MEDIUM
12th Odisha Board
IMPORTANT
Earn 100

Explain under which circumstances the terminal potential difference of a cell exceeds its emf.

Important Questions on Direct Current Circuits

HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 9
When the direction of current in a battery reverses, does the direction of its emf also reverse? Explain.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 10
Show that the ratio of voltage drops across two resistors connected in series is the same as the ratio of their resistances.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 11
Show that currents flowing through two resistors in parallel combination are inversely proportional to their resistances.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 12
State and explain Kirchoff's laws in connection with electrical network.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 13
Distinguish between emf and potential difference.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 14
Find the effective resistance of two one-ohm resistor connected in parallel.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 15
Give a sketch of Wheatstone’s bridge.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 6 - Direct Current Circuits>MODEL QUESTIONS>Q 16
The emf of a cell is 12 V. In a closed circuit having resistance of 23Ω, it sends a current of 0.5 A. What is the internal resistance of the cell?