Question

In a pn junction dipole at a high value of reverse bias, the current rises sharply. The value of reverse bias is known as

Solution

Correct option is

Zener voltage

pn junction diode especially designed to work only on the reverse break-down region (i.e. at a high value of the reverse bias) is called a Zener diode. The voltage across such a diode remains constant. This voltage is called the Zener voltage. 

SIMILAR QUESTIONS

Q1

The base current of a transistor is  and the collector current is 2 mA. What is the current gain for the common base configuration? 

Q2

In the depletion region of an unbiased pn junction diode, there are

Q3

An oscillator is nothing but an amplifier with

Q4

When Ge crystals are doped with phosphorus atom, then it becomes

Q5

The transfer ratio  of a transistor is 50. The input resistance of the when used in the common emitter configuration is . The peak value of the collector ac current for an ac input voltage for 0.01 V peak is

Q6

In a common base transistor circuit, the current gain is 0.98. On changing in the emitter current by 5.00 mA, the change in the collector current is

Q7

On increasing the reverse bias to a large value in a pn junction diode, the current  

Q8

When arsenic is added as an impurity to silicon, the resulting material is

Q9

What is the voltage gain in a common emitter amplifier, where the input resistance is  and load resistance ? Given .

Q10

The total current in the block is