EASY
12th Odisha Board
IMPORTANT
Earn 100

Draw the circuit diagram of a diode valve used as a rectifier.

Important Questions on Electron Emission

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 1

In thermionic emission, the thermionic current varies with temperature of the filament as:

EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 4
Discuss operating potentials of electrodes in a triode.
EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 5
Name the constants of a triode and state the relation between them.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 8
A voltage 200 sin 100 πt volt is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate peak current.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 8
A voltage  200 sin 100 πt V is supplied to a half-wave vacuum rectifier. If rp=1kΩ and RL=10 kΩ. Calculate a.c. power input.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 2
Describe the construction and working of a triode valve. Describe a circuit diagram for the study of its characteristics.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 4

With a circuit diagram, explain how the static characteristic curves of a triode are drawn?

Show how the tube constants are estimated with the help of these curves.

EASY
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 18 - Electron Emission>MODEL QUESTIONS>Q 2
The space charge limited current in a diode valve obeys _____ law.