FUN QUIZZ

 A semiconductor has ………… temperature coefficient of resistance.

• Positive

• Zero

• Negative

• None of the above

Find the ratio of a dozen and a score

• 3:5

• 4:5

• 3:6

• 4:6

The most commonly used semiconductor is ……….

• Germanium

• Silicon

• Carbon

• Sulphur

When a pure semiconductor is heated, its resistance …………..

• Goes up

• Goes down

• Remains the same

• Can’t say

Addition of pentavalent impurity to a semiconductor creates many

• Free electrons

• Holes

• Valence electrons

• Bound electrons

The universal gate is ………………

• NAND gate

• OR gate

• AND gate

• None of the above

The active components in an IC are ………….

• .Resistors

• Capacitors

• Transistors and diodes

• None of the above

The SiO2 layer in an IC acts as ………

• A resistor

• An insulating layer

• Mechanical output

• None of the above

In an unregulated power supply, if input a.c. voltage increases, the output voltage …….

• Increases

•  Decreases

• Remains the same

•  None of the above

 As the junction temperature increases, the voltage breakdown point for Zener mechanism …………

• Is increased

• Is decreased

• will be same

• None of the above