Home
Class 12
PHYSICS
If voltage across zener diode is 6V then...

If voltage across zener diode is 6V then find out value of maximum resistance in this condition.

A

`2kOmega`

B

`3kOmega`

C

`5kOmega`

D

`4kOmega`

Text Solution

Verified by Experts

The correct Answer is:
D
`i=(30)/(R=1)mA`
`"voltage across 1 "kOmega=(30)/(R+1).1=(30)/(R+1)=v_(2)`
`(30)/(R+1)=6`
`30=6R+6`
`24=6R" "rArr" "R=(24)/(6)=4kOmega`
Promotional Banner

Similar Questions

Explore conceptually related problems

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_(L)=4kOmega the series resistance of the circuit is R_(i)=1kOMega . if the battery voltage V_(B) varies from 8 V to 16 V, what are the minimum and maximum values of the currect through Zener diode?

Correct graph of voltage across zener diode will be

In a series L-C-R circuit, currenrt in the circuit is 11A when the applied voltage is 220 V . voltage across the caspcitor is 200 V . If the value of resistor is 20 Omega , then the voltage across the unknown inductor is

When a diode is forward biased, it has a voltage drop of 0.5 V. The safe limit of current through the diode is 10 mA. If a battery of emf 1.5 V is used in the circuit, the value of minimum resistance to be connected in series with the diode so that the current does not exceed the safe limit is :

In the given circuit the voltage drop across the diode is 0.8 V, if the diode can withstand current upto maximum of 30 mA, then find the maximum voltage of the battery

A Zener diode with a breakdown voltage of 4 V is connceted in sereis with a resistance R to a battery of emf 10 V. The maximum power dissipation rating for the Zener diode is 1 W. The value of R to ensure maximum power dissipation across the diode is

In a p-n junction diode, the currect I can expressed as I=I_(0) exp((eV)/(2k_(B)T)-1) where I_(0) is called the reverse saturation current, V is the voltage across the diode and is positive for forward bias and negative for reverse bias, and I is the current through the diode, K_(B) is the Boltzmann constant (8.6 xx 10^(-5) eV//K) and T is the absolute temperature. If for a given diode I_(o) = 5 xx 10^(-12) A and T = 300 K , then (a) What will be the forward current at a formward voltage of 0.6V ? (b) What will be the increase in the current if the voltage across the diode is increased to 0.7 V ? ( c) What is the dynamic resistance ? (d) What will be current if reverse bias voltage changes from 1 V to 2 V ?

The reverse breakdown voltage of a Zener diode is 5.6V in the given circuit. The current I_(2) through the Zener is:

Take the breakdown voltage of the zener diode used in the given circuit as 6V. For the input voltage shown in figure below , the time variation of the output voltage is : (Graphs drawn are schematic and not to scale )

When a battery connected across a resistor of 16 Omega , the voltage across the resistor is 12 V. When the same battery is connected across a resistor of 10 Omega , voltage across it is 11 V. The internal resistance of the battery (in ohm) is