Use the table to answer the question.

Question

Electromagnet Current Intensity Number of Turns
P medium 20
Q low 20
R l low 15

Which list shows the electromagnets in order from strongest magnetic force to weakest magnetic force? (1 point)

P, Q, R P, Q, R Q, R, P Q, R, P R, Q, P R, Q, P R, P, Q

Answer 1

To determine the strength of the magnetic force of the electromagnets, we can consider two factors: the current intensity and the number of turns. A higher current intensity and a greater number of turns generally result in a stronger magnetic force.

Based on the table:

• Electromagnet P: Medium current intensity, 20 turns
• Electromagnet Q: Low current intensity, 20 turns
• Electromagnet R: Low current intensity, 15 turns

Since electromagnet P has a medium current intensity, it is likely stronger than both Q and R, which have low current intensity. Among Q and R, both have low current intensity, but Q has more turns (20) compared to R (15), which would make Q stronger than R.

So, the order from strongest to weakest magnetic force is:

1. P (medium, 20 turns)
2. Q (low, 20 turns)
3. R (low, 15 turns)

Therefore, the correct list is P, Q, R.