The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6V and the load resistance is RL=4kΩ. The series resistance of the circuit is Ri=1kΩ. If the battery voltage VB varies from 8V to 16V, what are the minimum and maximum values of the current through Zener diode ?
0.5mA;6mA
0.5mA;8.5mA
1.5mA;8.5mA
1mA;8.5mA
A
0.5mA;6mA
B
0.5mA;8.5mA
C
1.5mA;8.5mA
D
1mA;8.5mA
Open in App
Solution
Verified by Toppr
At VB=8V iL=6×10−34=1.5×10−3A iR=8−6×10−31=2×10−3A ∴izenerdiode=iR−iload =0.5×10−3A At VB=16V iL=1.5×10−3A iR=(16−6)×10−31=10×10−3A ∴izenerdiode=iR−iL =8.5×10−3A
Was this answer helpful?
15
Similar Questions
Q1
The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6V and the load resistance is RL=4kΩ. The series resistance of the circuit is Ri=1kΩ. If the battery voltage VB varies from 8V to 16V, what are the minimum and maximum values of the current through Zener diode ?
View Solution
Q2
A zener diode voltage regulator operated in the range 120−180V produces a constant supply of 110V and 250mA to the load. If the maximum current is to be equally shared between the load and zener, then the values of series resistance (RS) and load resistance (RL) are:
View Solution
Q3
Figure shows a DC voltage regulator circuit, with a Zener diode of breakdown voltage =6V. If the unregulated input voltage varies between 10V to 16V, then what is the maximum Zener current ?
View Solution
Q4
A Zener diode, having breakdown voltage equal to 15V, is used in a voltage regulator circuit shown in figure. The current through the diode is
View Solution
Q5
A Zener diode, having breakdown voltage equal to 15V is used in a voltage regulator circuit shown in figure. The current through the diode is