Electrical Engineering Mcqs

The input impedance of a JFET is _____________that of an ordinary transistor?

• (A)  equal to
• (B)  less than
• (C)  more than
• (D)  none of the above

Answer

Submitted By :Ali Uppal

An integrating circuit is a simple RC series circuit with output taken across ______________?

• (A)  Both R and C
• (B)  R
• (C)  C
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A differentiating circuit is a simple RC circuit with output taken across ____________?

• (A)  R
• (B)  C
• (C)  Both R and C
• (D)  None of the above

Answer

Submitted By :Ali Uppal

One would find a clamping circuit in ___________________?

• (A)  Receiving antenna
• (B)  Radio transmitter
• (C)  Radio receiver
• (D)  Television receiver

Answer

Submitted By :Ali Uppal

When the transistor (CE arrangement) is in the cut off region, the collector current is ______________?

• (A)  ICBO
• (B)  ICEO
• (C)  (ß + 1) ICEO
• (D)  IC(sat)

Answer

Submitted By :Ali Uppal

When a transistor is used as an amplifier, it is operated in the _____________ region?

• (A)  Off
• (B)  Saturation
• (C)  Active
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A negative clipper removes the ______________half-cycles of the input voltage?

• (A)  Negative
• (B)  Positive
• (C)  Both positive and negative
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A JFET has ____________ power gain?

• (A)  small
• (B)  very high
• (C)  very small
• (D)  none of the above

Answer

Submitted By :Ali Uppal

If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ______________?

• (A)  is decreased
• (B)  is increased
• (C)  remains the same
• (D)  none of the above

Answer

Submitted By :Ali Uppal

A JFET is a__________ driven device?

• (A)  current
• (B)  voltage
• (C)  both current and voltage
• (D)  none of the above

Answer

Submitted By :Ali Uppal