Operation of BJT ,JFET ,MOSFET

Question 1

Operation of NPN BJT

if no volts on base

Answer 1

Depletion layer at base emitter junction

No current flows

Question 2

Operation of NPN BJT

when can current flow

Answer 2

VBE=0.7 +

Base Emitter forward biased

Question 3

Operation of BJT

Formula IE

Answer 3

IE=IB+IC

Question 4

Operation of BJT

IE almost same as

Answer 4

IC

Question 5

Operation of BJT

HFE

Answer 5

HFE=IC/IB

Question 6

Operation of BJT

IC

Answer 6

IC=HFE*IB

Question 7

Operation of BJT

Power or Power rating

Answer 7

Power=VCE*IC

Question 8

Operation of BJT

IB

Answer 8

IB=IC/HFE

Question 9

Operation of BJT

Vin

Answer 9

Vin=VBE+(IB*RB)

Question 10

Operation of BJT

VCE

Answer 10

VCE=VCC-(IC*RC)

Question 11

VGS - MOSFET

Answer 11

Voltage Gate to Source

Question 12

ID - MOSFET

Answer 12

Current Drain to source

Under VGS and VDS

Question 13

IDSS - MOSFET

Answer 13

Max drain current under VGS=0v

Question 14

VP - MOSFET

Answer 14

Pinch off Voltage

Where voltage flattens out

Question 15

BVDSS - MOSFET

Answer 15

Max Drain to source Voltage Breakdown voltage

Question 16

Enhancement mode needs

Answer 16

potential on the gate

Question 17

Depletion mode needs

Answer 17

0 V on the gate

Question 18

GFS

Answer 18

Forward Trans Conductance