ISCET Electronic Components & Circuit Analysis 2

Question 1

What happens to the total capacitance when capacitors are connected in series?

Accepted Answer

Total capacitance decreases

Answer

Total capacitance increases

Answer

Total capacitance equals the largest capacitor

Answer

Total capacitance remains unchanged

Question 2

A zener diode is primarily used in circuits for:

Accepted Answer

Voltage regulation

Answer

Signal amplification

Answer

Frequency filtering

Answer

Current amplification

Question 3

In an RL circuit, the time constant τ is defined as:

Accepted Answer

L / R

Answer

R × C

Answer

R / L

Answer

L × C

Question 4

Which type of transistor configuration provides the highest voltage gain?

Accepted Answer

Common emitter

Answer

Common base

Answer

Common collector

Answer

Common gate

Question 5

A 100 mH inductor carries 2 A of current. What is the energy stored in the inductor?

Accepted Answer

0.2 J

Answer

0.1 J

Answer

0.4 J

Answer

4 J

Question 6

What is the function of a bypass capacitor in an amplifier circuit?

Accepted Answer

Short-circuit the emitter resistor at AC frequencies

Answer

Increase DC bias stability

Answer

Filter high-frequency noise from the power supply

Answer

Block the DC component of the signal

Question 7

Which statement correctly describes a depletion-mode MOSFET?

Accepted Answer

It conducts at zero gate-to-source voltage

Answer

It requires a positive gate voltage to turn on

Answer

It is normally off with no gate voltage applied

Answer

It can only operate with N-type channel