If biasing is not done in an amplifier circuit, it results in ___________

Decrease in the base current
Unfaithful amplification
Excessive collector bias
None of the above

The correct answer is: B. Unfaithful amplification

Biasing is the process of setting the operating point of a transistor so that it can amplify a signal faithfully. If biasing is not done, the transistor will not be able to amplify the signal properly and the output will be distorted.

Option A is incorrect because the base current is not affected by biasing.

Option C is incorrect because excessive collector bias can cause the transistor to overheat and damage itself.

Option D is incorrect because biasing is essential for faithful amplification.