A transformer is used in the final stage of a multistage amplifier. If the output impedance of the transistor is 2 kΩ and the speaker has a resistance of 20 Ω, what will be the turn’s ratio of the transformer so that the maximum power is transferred to the load?
1
2 : 20
2
10 : 1
3
20 : 2
4
1 : 10