1
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
2
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
3
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
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

In the diagram shown, the Zener diode has a reverse breakdown voltage of $V_Z$. The current through the load resistance $R_L$ is $I_L$. The current through the Zener diode is

KCET 2024 Physics - Semiconductor Devices and Logic Gates Question 13 English

A
$\frac{V_0-V_Z}{R_S}$
B
$\frac{V_0-V_Z}{R_L}$
C
$\frac{V_Z}{R_L}$
D
$\left(\frac{V_0-V_Z}{R_S}\right)-I_L$
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