Mechanics
Units & Measurement and Dimensions
MCQ (Single Correct Answer)
Motion in a Straight Line
MCQ (Single Correct Answer)
Work, Energy and Power
MCQ (Single Correct Answer)
Center of Mass and Collision
MCQ (Single Correct Answer)
Simple Harmonic Motion
MCQ (Single Correct Answer)
Heat and Thermodynamics
MCQ (Single Correct Answer)
Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
KCET 2025
MCQ (Single Correct Answer)
+1
-0
Which of the following statements is correct for an n-type semiconductor?
A
The donor energy level lies closely above the top of the valance band
B
The donor energy level lies at the half way mark of forbidden energy gap
C
The donor energy level does not exist
D
The donor energy level lies just the bottom of the conduction band
2
KCET 2025
MCQ (Single Correct Answer)
+1
-0

The circuit shown in figure contains two ideal diodes $D_1$ and $D_2$. If a cell of emf $3 V$ and negligible internal resistance is connected as shown, then the current through $70 \Omega$ resistance, (in ampere) is

KCET 2025 Physics - Semiconductor Devices and Logic Gates Question 1 English
A
0.01
B
0.02
C
0.03
D
0
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Depletion region in an unbiased semiconductor diode is a region consisting of only free electrons only holes

A
both free electrons and holes
B
neither free electrons nor holes
C
only free electrons
D
only holes
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The upper level of valence band and lower level of conduction band overlap in the case of

A
silicon
B
copper
C
carbon
D
germanium
KCET Subjects