CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Zener Diode

In the given ...

Question

In the given circuit, the voltage across the voltage across the load is maintained at 12V. The current in the zener diode varies from 0-50 mA. What is the maximum watage of the diode?

A

12 W

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

6 W

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

0.6 W

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

1.2 W

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 0.6 W
The voltage drop across the diode and the load are same because they are connected in parallel.
The maximum current through the diode is 50mA.
Thus, the maximum power dissipated in the diode will be 50mA times 12V = 0.6W

Suggest Corrections

thumbs-up

0

Similar questions

Q. 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

R_{L} = 4 k Ω

. The series resistance of the circuit is

R_{i} = 1 k Ω

. If the battery voltage

V_{B}

8 V

16 V

, what are the minimum and maximum values of the current through Zener diode ?

Q. A 5 V zener diode is used to regulate the voltage across load resistor

R_{L}

and the input voltage varies in between 10 V to 15 V. The load current also varies from 5 mA to 50 mA. Find the value of series resistance R.

I_{Z} (m i n) = 20 m A

Q. A zener diode having zener voltage

8 V

and power dissipation rating of

0.5 W

is connected across a potential divider arranged with maximum potential drop across zener diode is as shown in the diagram. The value of protective resistance

R_{p}

Ω

Q. Figure shows a

DC

voltage regulator circuit, with a Zener diode of breakdown voltage

= 6 V .

If the unregulated input voltage varies between

10 V

16 V,

then what is the maximum Zener current ?

Q. How is a Zener diode fabricated? What causes the setting up of high electric field even for small reverse bias voltage across the diode?
Describe, with the help of a circuit diagram, the working of Zener diode as a voltage regulator.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Zener Diode

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon