Use the table to answer the question.

Question

Electromagnet Current Intensity Number of Turns
P medium 20
Q low 20
R low 15
Which list shows the electromagnets in order from strongest magnetic force to weakest magnetic force?

(1 point)
Responses

R, Q, P
R, Q, P

P, Q, R
P, Q, R

Q, R, P
Q, R, P

R, P, Q

Answer 1

To determine the strength of the magnetic force of the electromagnets, we consider both the current intensity and the number of turns. The strength of an electromagnet can generally be estimated by the formula:

\[ \text{Magnetic Force} \propto \text{Current Intensity} \times \text{Number of Turns} \]

Let's analyze each electromagnet:

1. Electromagnet P:

   • Current Intensity: medium
   • Number of Turns: 20

2. Electromagnet Q:

   • Current Intensity: low
   • Number of Turns: 20

3. Electromagnet R:

   • Current Intensity: low
   • Number of Turns: 15

Assuming "medium" current intensity is greater than "low", we can deduce the following:

• For Electromagnet P, since it has a medium current intensity and 20 turns, it is likely the strongest.
• Electromagnet Q has a low current intensity but the same number of turns as P, so it is weaker than P but stronger than R.
• Electromagnet R has a low current intensity and fewer turns than Q, making it the weakest.

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

P, Q, R.

So the correct response is:

P, Q, R.