Question

Solution

Correct option is

200 om

The value of the resistor R must be such that the maximum current i in the circuit is 5 mA.

Using Ohm’s law, we have    SIMILAR QUESTIONS

Q1

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

Q2

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

Q3

The total current in the block is

Q4

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

Q5

The current gain in a common emitter transistor is

Q6

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 ?

Q7

When npn transistor is used as an amplifier

Q8

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

Q9

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

Q10

A Si diode (p-junction) is connected to a resistor R and a biasing battery of variable voltage VB. Assume that diode requires a maximum current of 1 mA to be above the knee point (0.7 V) of its V-i characteristic curve. Also assume that the voltage V across the diode is independent of current above the knee point. If VB = 5 V, what should be the maximum value of R so that the voltage V is above the knee-point voltage? 