Quizr: Circuit Theory Quiz#3, MCQs

Circuit Theory Quiz#3, MCQs

NOTE: Attempt all Questions to see the Result at the bottom of this page.

The Timer has started 10:00

1)

Avalanche breakdown is primarily dependent on the phenomenon of
- A) Collision
- B) Doping
- C) Ionization
- D) Recombination
Right Answer is the option "A"

2)

Without a DC source a clipper acts like a
- A) Rectifier
- B) Clamper
- C) Demodulator
- D) Chopper
Right Answer is the option "A"

3)

The clipping level is primarily determined by
- A) Shape of the input waveform
- B) Battery voltage
- C) Value of the resistor
- D) Knee voltage of the diode
Right Answer is the option "D"

4)

The base region of a p-n-p transistor is
- A) Very thin and heavily doped with holes
- B) Very thin and heavily doped with electrons
- C) Very thin and lightly doped with holes
- D) Very thin and lightly doped with electrons
Right Answer is the option "A"

5)

Converting 12v voltage source into current source, value of converted current source source will be
- A) 3mA
- B) 2mA
- C) 48mA
- D) 1mA
Right Answer is the option "A" I = V/R => = 12/4 = 3mA

6)

Charge of 2c and 5c will
- A) attract each other
- B) repel each other
- C) no effect
- D) cancel each other
Right Answer is the option "B"

7)

Which battery applies a greater potential difference?
- A) 12v
- B) 1.5v
- C) 10v
- D) 0.5v
Right Answer is the option "A"

8)

When one resistance in a series string is open
- A) The current is maximum in the normal resistances.
- B) The current is zero in all resistances
- C) The voltage is zero across the open resistance
- D) The current increases in voltage source
Right Answer is the option "B"

9)

Addition of impurities in semiconductor material to produce more current is called
- A) dopping
- B) bonding
- C) excitation
- D) intrinsic
Right Answer is the option "A"

10)

A diode is a
- A) one way conductor
- B) two way conductor
- C) three way conductor
- D) insulator
Right Answer is the option "A"