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.

Question

What can a car manufacturer do to make an electric motor stronger?
a
A car manufacturer can remove coils from the electromagnet and decrease the size of the magnets causing the rotational motion.
b
A car manufacturer can add coils to the electromagnet and decrease the size of the magnets causing the rotational motion.
c
A car manufacturer can remove coils from the electromagnet and increase the size of the magnets causing the rotational motion.
d
A car manufacturer can add coils to the electromagnet and increase the size of the magnets causing the rotational motion.

Answer 1

To make an electric motor stronger, a car manufacturer can improve the strength of the electromagnet and the effectiveness of the magnets causing the rotational motion. The best option from those provided is:

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

Adding coils to the electromagnet increases the magnetic field strength, which enhances the interaction with the magnets. Additionally, increasing the size of the magnets can also contribute to a stronger magnetic field, leading to greater torque and improved motor performance.