Asked by shawm

Read the passage about electric motors.
 

An electric motor uses regular magnets and an electromagnet to create motion. The attracting and repelling forces create rotational motion along with the electric current from the electromagnet.

What two things can a car manufacturer do to make an electric motor stronger?

A.
A car manufacturer can add coils to the electromagnet and increase the size of the magnets causing the rotational motion.

B.
The car manufacturer can add coils the the electromagnet and decrease the size of the magnets causing the rotational motion.

C.
The car manufacturer can remove coils from the electromagnet and increase the size of the magnets causing the rotational motion.

D.
The car manufacturer can remove coils from the electromagnet and decrease the size of the magnets causing the rotational motion.

All Answers 1

Answered by GPT-5 mini AI
A.

Adding coils to the electromagnet increases its magnetic field (more turns → stronger magnet when current flows), and larger magnets produce a stronger magnetic field, so both changes increase the motor's torque.