How does an ammeter affect the circuit being measured?

How does an ammeter affect the circuit being measured?

  1. It acts as a resistance in series and lowers the circuit current
  2. It acts as a resistance in series and raises the circuit current
  3. It acts as a resistance in parallel and lowers the circuit current
  4. It acts as a resistance in parallel and raises the circuit current
Show Answer

Answer: A

Share your understanding of this question with the correct explanation.