MDCAT Physics MCQ #921

MDCAT Physics MCQ #921

1. Question 1

   Q1. A person uses a motor to lift a heavy load. What is the primary advantage of using a motor with a low number of turns?

   • A) The motor produces a weaker magnetic field due to the reduced number of turns.
   • B) The motor produces a stronger magnetic field due to the increased number of turns.
   • C) The motor's ability to do work is reduced due to the reduced number of turns.
   • D) The motor's efficiency is increased due to the reduced number of turns.

   Answer: The motor's efficiency is increased due to the reduced number of turns.

   Explanation: A motor with a low number of turns increases its efficiency due to reduced resistance and energy losses.