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JEE Main Physics Class 12 Electronic Devices Part 1 Questions
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© examsnet.com
Question : 22
Total: 99
The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is
6
V
and the load resistance is
R
t
=
4
k
. The series resistance of the circuit is
R
i
=
1
k
. If the battery voltage
V
B
varies from
8
V
to
16
V
,
what are the minimum and maximum values of the current through Zener diode?
[10 Apr. 2019 II]
0.5 mA; 6 mA
1 mA; 8.5 mA
0.5 mA; 8.5 mA
1.5 mA; 8.5 mA
Validate
Solution:
For voltage, V = 8V
Current,
I
1
=
(
8
−
6
−
3
2
)
=
1
2
=
0.5
m
A
For voltage,
V
=
16
V
Current,
I
2
=
(
16
−
6
−
3
2
)
=
8.5
m
A
© examsnet.com
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