Physics GK 24 - Electronics Basics

1.

When is a p-n diode said to be forward biased?

when p-side is connected to the positive terminal of the battery

when n-side is connected to the positive terminal of the battery

when p-side is connected to the negative terminal of the battery

None of the above

2.

What is the total diode forward current?

hole diffusion current

difference between hole diffusion current and conventional current due to electron diffusion

sum of hole diffusion current and conventional current due to electron diffusion

None of the above

3.

What is a p-n diode said to be in reverse-bias?

positive terminal of the external battery is connected to the p-side

positive terminal of the external battery is connected to the n-side

negative terminal of the external battery is connected to the n-side

None of the above

4.

Which of the following is correct about reverse biasing?

the barrier height increases

the depletion region widens

Both a and b

None of the above

5.

What is the minimum number of logic gates in a VLSI?

10

100

1000

10000