Electronics Set 3 - ilmijazeera

Results

#1. A logic gate is an electronic circuit which

Makes logic decision

Work on binary algebra

Alternates between 0 and 1

None of these

#2. The reverse current through semi-conductor diode is due to

Holes

Electrons

Majority carriers

Minority carriers

#3. The potential barrier for PN junction made from Si at room temperature is

0.9 V

0.3 V

0.7V

0.8 V

#4. The output of a 2-input OR gate is zero only when its

Both input are zero

Either input is 1

Both input are 1

Either input is 0

#5. An XOR gate produces a positive logic output only when its two inputs are

High

Low

Different

Same

#6. An AND Gate

#7. The only function of a NOT gate is to

Stop a signal

Re-complement a signal

invert an input signal

None

#8. Transistor can be used as

Oscillators

Switches

Memory unit

All of them

#9. NOT gate has only

One input

Two inputs

Many input

None

#10. A photodiode can switch its current ON and OFF in

Milli seconds

Micro seconds

Nano seconds

Acts as a universal gate

Finish