The problems concerned to low frequency in response to the capacitance value can be resolved by which form of couplings mentioned below ?

The problems concerned to low frequency in response to the capacitance value can be resolved by which form of couplings mentioned below ?

a. Impedance Coupling
b. RC Coupling
c. Direct Coupling
d. Transformer Coupling

Correct Answer : c. Direct Coupling

Explanation :

Direct coupling is especially meant for low frequency applications (10Hz) while the remaining mentioned couplings of RC, impedance and transformer are designed for multistage cascaded amplifiers.