Multiple choice general knowledge

What happens when the impedance of an electrical load is equal to the internal impedance of the power source?

  1. The electrical load is shorted

  2. The source delivers minimum power to the load

  3. The source can deliver maximum power to the load

  4. No current can flow through the circuit

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to the Maximum Power Transfer Theorem, maximum power is delivered when load impedance matches the source's internal impedance. This is not a short circuit - current flows normally, but power transfer is optimized.