Sample quiz on semiconductors

Number of pins in a JFET is

• Three

• Four

• One

• Two

When a dielectric is inserted the capacitance of a capacitor,

• Increases

• Remains the same

• Decreases

• Doubles

The diagram is the symbol of

• N channel MOSFET

• P Channel MOSFET

• N channel FET

• P channel FET

number of pins in 8051 microcontroller

• 40

• 50

• 60

• 30

The oxide layer formed in the MOSFET is

• Metal oxide

• Silicon dioxide

• Poly Silicon oxide

• Oxides of Non metals

List the JFET parameters

• AC resistance

• Transconductance

• Amplification factor

• All the options

If the cross-sectional area of the channel in n-channel JEFT increases, the drain current ……….

• Is increased

• Is decreased

• remains constant

• None of the above

In a JFET, I_DSS is known as …………..

• drain to source current with gate open

• drain to source current with gate shorted

• drain to source current

• none of the above

A MOSFET is sometimes called ………. JFET

• Many gate

• Open gate

• Insulated gate

• Shorted gate

A JFET has three terminals, namely

• cathode,anode,grid

• emitter, base, collector

• source, gate, drain

• none of the above