Electronic problems...?

Question

1. the low frequency response of an amplifier is determined in part by?

2. Ideally, the midrange gain of an amplifier

a. increases with freq

b. remains constant with freq

c. decreases with freq

d. depends on the capacitors

3. when the voltage gain of an amplifier is increased, the bandwidth

a. not affected

b. increase

c. decrease

d. becomes distorted

4. when the ac base voltage is too large, the ac emitter current is

a. sinusoidal

b. distorted

c. constant

d. decreasing

Answer 1

1. the low frequency response of an amplifier is determined in part by?

low frequency as opposed to other frequencies?

any bypass or coupling capacitors.

Low frequency in general?

The components used and the circuit.

2. Ideally, the midrange gain of an amplifier

b. remains constant with freq

3. when the voltage gain of an amplifier is increased, the bandwidth

depends on the circuit and on how the gain is increased. BW could not change or could decrease.

4. when the ac base voltage is too large, the ac emitter current is

b. distorted

.

Answer 2

1. Could be the values of the input and output capacitors.

2. b, because a flat frequency response is usually what you want.

3. c, because gain bandwidth product is usually constant.

4. b. Type of distortion depends on the circuit, but typically it will be clipping.

Answer 3

1) The external coupling capacitors

2) Ideally, the gain remains constant

3) The Gain-Bandwidth product is constant, thus if the gain increases the bandwidth must decrease.

4) If the AC base voltage is too large it will drive the transistor out of the linear region of operation, and the emitter will look distorted.