Introductory Electronics - Jamb Physics Past Questions and Answers

Question 11:

• JAMB 2005

A silicon material is dopped with an element of a certain group and an n-type semi-conductor is formed. the most likely group of the element is

A. V
B. III
C. I
D. II

Question 12:

• JAMB 2005

The current in a reverse-biased junction is due to?

A. Minority carriers
B. Electrons
C. Majority carriers
D. Holes

Question 13:

• JAMB 2005

In the circuit diagram of a transistor above, the terminal P, Q and R represent

A. EMITTER, BASE and COLLECTOR
B. COLLECTOR, EMITTER and BASE
C. BASE, COLLECTOR and EMITTER
D. BASE, ENITTER and COLLECTOR

Question 14:

• JAMB 2006

The battery connection that permits current to flow across a p-n junction is called?

A. Reverse baised
B. Forward baised
C. Amplification.
D. Rectification

Question 15:

• JAMB 2006

The theory of electronic conduction in solids, which satisfactorily explains the properties of conductors, insulators and semi-conductor,is?

A. String theory
B. Particle theory
C. Group theory
D. Band theory