14) The advantage of impedance coupling (using a choke as collector load) is ?

low d.c. resistance and high impedance

low d.c. resistance and low impedance

high d.c. resistance and high impedance

high d.c. resistance and low impedance

Answer is:

low d.c. resistance and high impedance

its cost is high

it is bulky

it does not give a uniform frequency response over the entire a.f. range

all the above stated drawbacks

Answer is:

RC coupling

Impedance coupling

Transformer coupling

Direct coupling

Answer is:

impedance of choke varies with frequency

choke is quite bulky and occupies large space

expensive in comparison to RC coupling

all the above stated disadvantages

Answer is:

high efficiency

high power gain

low distortion

all the above stated reasons

Answer is: