IndiaBIX

Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 1
31.
In figure the saturation collector current is
none of the above
Answer: Option
Explanation:

Since IE IC, .

32.
Consider the following statements : A clamper circuit
  1. adds or subtracts a dc voltage to a waveform
  2. does not change the waveform
  3. amplifiers the waveform
Which are correct?
1, 2
1, 3
1, 2, 3
2, 3
Answer: Option
Explanation:

Clamper does not amplify the waveform. Hence 1 and 2 are correct.

33.
In figure v1 = 8 V and v2 = 8 V. Which diode will conduct?
D1 only
D2 only
Both D1 and D2
Neither D1 nor D2
Answer: Option
Explanation:

Both D1 and D2 are forward biased.

34.
A forward voltage of 9 V is applied to a diode in series with a 1 kΩ load resistor. The voltage across load resistor is zero. It indicates that
diode is short circuited
diode is open circuited
resistor is open circuited
diode is either short circuited or open circuited
Answer: Option
Explanation:

Since load voltage is zero, the current is zero and diode is open-circuited. If load was open-circuited, load voltage would be about 9 V.

35.
Which power amplifier can deliver maximum load power?
Class A
Class AB
Class B
Class C
Answer: Option
Explanation:

Since efficiency of class C operation is high, maximum load power is delivered.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers