For the circuit shown, the resistance R is variable from 2Ω to 50Ω. What value of RS results in maximum power transfer across terminals ‘ab’.

For the circuit shown, the resistance R is variable from 2Ω to 50�

1.	For the circuit shown, the resistance R is variable from 2Ω to 50Ω. What value of RS results in maximum power transfer across terminals ‘ab’.
A.	1
B.	2
C.	3
D.	4
Answer» C. 3