1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

COMEDK 2024 Evening Shift Physics - Semiconductor Devices and Logic Gates Question 11 English

The output of the given circuit is

A. Negatively rectified half wave

B. Positively rectified half wave

C. Negatively rectified full wave

D. Zero all times

A
B
B
D
C
A
D
C
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The following are the graphs of potential barrier versus width of the depletion region for a p-n junction diode.

COMEDK 2024 Evening Shift Physics - Semiconductor Devices and Logic Gates Question 10 English

Which of the following is correct?

I II III IV`
A - unbiased diode A - Forward biased diode A - unbiased diode A - unbiased diode
B - Reverse biased B - Reverse biased B - Forward biased B - unused diode
C - Forward biased C - unbiased C - Reverse biased C - Forward biased

A
II
B
III
C
IV
D
I
3
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { In a p-n junction, the depletion layer of thickness } 1 \mu \mathrm{m} \text { has } 0.05 \mathrm{~V} \text { potential across it. The electric field in } N C^{-1} \text { is } $$

A
$$ 5 \times 10^{-8} $$
B
$$ 5 \times 10^{2} $$
C
$$ 5 \times 10^{5} $$
D
$$ 5 \times 10^{4} $$
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

The mobility of the charge carriers increases with

A
The average collision time
B
Increase in the mass of the charge
C
Increase in the electric field
D
Decrease in the charge of the mobile carriers
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