Question

Effect of feedback connection on input and output impedance :
• [A.] Input impedance increases in voltage-series configuration
• [B.] Input impedance increases in current-series configuration
• [C.] Input impedance increases in current-shunt configuration
• [D.] Output impedance decreases in voltage-shunt configuration
• [E.] Output impedance decreases in current-series configuration Choose the correct answer from the options given below :

• A. B, C, D only
• B. A, B, D only
• C. A, B, E only
• D. B, D, E only

Hint:

Remember:
• Series mixing \(\rightarrow\) increases input impedance
• Shunt mixing \(\rightarrow\) decreases input impedance
• Voltage sampling \(\rightarrow\) decreases output impedance
• Current sampling \(\rightarrow\) increases output impedance

Answer 1

The Correct Option is B