A pentavalent impurity has ________ valence electrons:

• 3

• 5

• 4

• 6

The direction of conventional current is always _______ to the direction of drifting electrons:

• Same

• Opposite

• Can’t say

• None of the above

The average current for a half-wave rectifier is:

• Im / π

• Im / 2

• 2Im / π

• Im √2

The RMS current for a full-wave rectifier is:

• Im / π

• Im / 2

• 2Im / π

• Im / √2

The Ripple factor of a half-wave rectifier is:

• 40.6

• 81.2

• 0.48

• 1.21

An inductor ________ to pass through it:

• Allows DC

• Blocks DC

• Allows AC

• Blocks AC

A transistor can be visualized as a ______ port network:

• One

• Two

• Three

• Four

A ______ circuit has a very high input resistance and very low output resistance:

• Common base

• Common emitter

• Common collector

• None of the above

In a transistor in the saturation region, the emitter-base and collector-base junctions are ______ biased:

• Forward

• Reverse

• Unbiased

• None of these

The intersection of a DC load line and the output characteristics of a transistor is called:

• Q point

• Quiescent point

• Operating point

• All of these