Back to SEMI CONDUCTOR DEVICES
Your Progress
0 / 4 Answered
0
Correct
0
Incorrect
0%
Accuracy
JEE • PHYSICS • SEMI CONDUCTOR DEVICES
Semi conductor devices practice · Easy
Try a question, then open “View answer” to check it. Sign in to submit answers and save progress.
Practice format and chapter quiz
These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.
Take a chapter quiz →
1
Easy
1 of 4
Understanding
+4 | -1
If we add impurity to a metal those atoms also deflect electrons. Therefore
View answer and explanation
Correct option: B
The electrical and thermal conductivities both decrease
Option B (The electrical and thermal conductivities both decrease) is correct because impurities increase electron scattering, thus reducing both electrical and thermal conductivity.
2
Easy
2 of 4
Understanding
+4 | -1
If a LED forward biased, then
View answer and explanation
Correct option: A
electrons from the - type side cross the junction and recombine with holes in the - type side
Option A (electrons from the - type side cross the junction and recombine with holes in the - type side) is correct because in forward bias, electrons move from the n-side to the p-side and recombine with holes, leading to light emission in an LED.
3
Easy
3 of 4
Application
+4 | -1
A n – p – n transistor having a.c. current gain of 50 is to be used to make an amplifier of power gain of 300. What will be the voltage gain of the amplifier
View answer and explanation
Correct option: B
6
Option B (6) is correct because voltage gain is the power gain divided by the current gain.
4
Easy
4 of 4
Understanding
+4 | -1
In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be:
View answer and explanation
Correct option: D
60 Hz
Option D (60 Hz) is correct because in half-wave rectification, the output frequency is the same as the input frequency.
Revision notes and key takeaways
Review SEMI CONDUCTOR DEVICES in your textbook or class notes, then use this set to check your understanding.
Key Takeaways
- ✓ This set contains 4 single-correct-answer MCQs on SEMI CONDUCTOR DEVICES.
- ✓ Try each question before opening its answer. Read the explanation where one is available.
- ✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.
Continue Your Practice
📚 Switch Set (EASY)
0
/4
0✓
0✗
0% Accuracy