BASIC ELECTRONICS Solved MCQs

BASIC ELECTRONICS Solved MCQs

1.  A logic circuit, that can add two 1-bit numbers and produce outputs for sum and carry

a) full adder

b) semi adder

c) half adder

d) double adder

Answer - Click Here:
C

2. An ordinary transistor is

a) dipolar

b) tripolar

c) bipolar

d) tetra polar

Answer - Click Here:
C

3. What does hybrid word means?

a) unique

b) single

c) dual

d) none of these

Answer - Click Here:
C

4. When the current in primary coil of a transformer is changed it induce change  in the magnetic field of

a) capaitor

b) transistor

c) resistor

d) secondary coil

Answer - Click Here:
D

5. We use half wave rectifier for

a) to run AC care

b) to run car radios

c) to run batteries

d) to run tape recorders

Answer - Click Here:
A

6. Zener diode is …

a) current stabiliser

b) voltage stabiliser

c) resistance stabiliser

d) none of these

Answer - Click Here:
B

7. We can construct exclusive -OR gate using which other gates?

a)  AND, NOT  and  OR gate only

b) AND and NAND gate only

c) OR gate only

d) all of these

Answer - Click Here:
A

8. Unit of  resistance is …

a) ampere

b) ohm

c) emf

d) none of these

Answer - Click Here:
B

9.  Transistor amplifier equation is VCE=VCB+……..

a) 5VBE

b) 3VEB

c) VBE

d) none of these

Answer - Click Here:
C

10. In a reverse biased junction, its barrier potential will be

a) decreased

b) remain same

c) increased

d) continuosly change

Answer - Click Here:
C

11. Mutaual induction dependents on

a) resistance chnages

b) current changes

c) voltage changes

d) none the above

Answer - Click Here:
B

12. A transformer used to convert unbalanced signals to balanced signals is named as …

a) auto – transformer

b) balun

c) step-up transformer

d) step down -transformer

Answer - Click Here:
B