- #1

jaus tail

- 615

- 48

## Homework Statement

Maximum power is transferred to variable load when:

1) R

_{L}= R

_{s}

2) R

_{L}not equal to 0. and R

_{s}= 0

3) R

_{L}= 0 and R

_{s}not equal to 0

4) R

_{L}= R

_{s}/2

## Homework Equations

Maximum power theorem R

_{L}= R

_{s}

## The Attempt at a Solution

But if Rs = 0, then current is maximum, so load get maximum power. Shouldn't answer be B. Book answer is A.

I tried with a 4V dc source and 1 ohm source resistance and 1 ohm load resistance.

Power = 2^2 / 1 = 4.

In second case I put source resistance = 0.

Power = 4^4 = 16.