Electronics questions | form four Physics

Figure 2 shows the arrangement of three capacitors.

What will be the value of equivalent capacitance across two terminals QR?

1. 1.95 μF
2. 1.05 μF 
3. 1.85 μF
4. 1.59 μF 
5. 1.15 μF.

Answer / Solution

UNSOLVED

Which category of the material whose electrical conductance lie between an insulator and a conductor?

Answer / Solution

UNSOLVED

Distinguish between:
(i) donor and acceptor atoms.
(ii) n-type and p-type semiconductors.

Answer / Solution

UNSOLVED

A P-N junction diode acts as a rectifier when it
A converts a.c. to d.c.
B converts d.c. to a.c.
C improves the amplitude of the input a.c. signals
D improves the amplitude of the input d.c. signals
E amplifies a.c. signals.

Answer / Solution

UNSOLVED

Describe the construction and mode of action of the PN junction semiconductor.

Answer / Solution

UNSOLVED