What bias conditions must be present for the normal operation of a transistor amplifier?
a. the emitter-base junction must be forward biased, and the collector-base junction must be reverse biased.
b. both junctions must be forward biased.
c. the emitter-base junction must be reverse biased, and the collector-base junction must be forward biased.
d. both junctions must be reverse biased.

The condition that must be present for the normal operation of a transistor amplifier is the emitter-base junction must be reverse biased, and the collector-base junction must be forward biased. The answer is letter C. It should not drive the transistor either into saturation or into cu – off, resulting in one will deem transistors to be inefficient

when it gains or loses electrons

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.