Question

The V-i characteristic of a silicon diode is given in the figure. Calculate the diode resistance in forward bias at V = +2 volt.  

Solution

Correct option is

At forward bias, V = +2 volt, the diode current i is . Therefore, the diode resistance is 

                                    

              

              .

SIMILAR QUESTIONS

Q1

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

Q2

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

Q3

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

Q4

The total current in the block is 

Q5

In a pnp transistor, the p-type crystal acts as

Q6

The current gain in a common emitter transistor is

Q7

If the input and output resistances in a common-base amplifier circuit are  respectively, what is the voltage amplification when the emitter current is 2 mA and current gain ?

Q8

When npn transistor is used as an amplifier

Q9

When a pn junction is reverse biased, the flow of current across the junction is mainly due to

Q10

A forward-biased p-n junction diode has a potential drop of 0.5 V which is assumed to be independent of current. The current in excess of 10 mA through the diode produces so much heating that burns the diode. If we have a 1.5 V battery to bias the diode, resistor must be used in series with the diode so that the maximum current does not exceed 5 mA?