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 2024
MCQ (Single Correct Answer)
+1
-0

A $p-n$ junction diode is connected to a battery of emf 5.7 V in series with a resistant $5 \mathrm{k} \Omega$ such that it is forward biased. If the barrier potential of the diode is 0.7 V , neglecting the diode resistance, the current in the circuit is

A
1.14 mA
B
1 mA
C
1 A
D
1.14 A
2
KCET 2023
MCQ (Single Correct Answer)
+1
-0

When a $$p$$-$$n$$ junction diode is in forward bias, which type of charge carriers flows in the connecting wire?

A
Free electrons
B
Ions
C
Protons
D
Holes
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

A full-wave rectifier with diodes $$D_1$$ and $$D_2$$ is used to rectify $$50 \mathrm{~Hz}$$ alternating voltage. The diode $$D_1$$ conducts ......... times in one second.

A
100
B
25
C
75
D
50
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

A truth table for the given circuit is

KCET 2023 Physics - Semiconductor Devices and Logic Gates Question 28 English

A
A B Y
1 1 1
1 0 1
0 1 0
0 0 1
B
A B Y
1 1 1
1 0 0
0 1 1
0 0 1
C
A B Y
1 1 1
1 0 1
0 1 1
0 0 1
D
A B Y
1 1 1
1 0 1
0 1 1
0 0 0
KCET Subjects