Networks Analysis and Synthesis - Engineering

Q1:

In a practical voltage source, the terminal voltage

A cannot be less than source voltage

B cannot be higher than source voltage

C is always less than source voltage

D is always equal to source voltage

ANS:B - cannot be higher than source voltage

A practical voltage source has some source resistance. Because of voltage drop across source resistance, terminal voltage cannot be higher than source voltage. If current is zero, terminal voltage and source voltage are equal.