To determine the strength of the electromagnets based on the given factors (current intensity and number of turns), we can analyze each electromagnet:
- P: Current Intensity = 20, Number of Turns = 20
- Q: Current Intensity = 20, Number of Turns = 20
- R: Current Intensity = 15, Number of Turns = 15
The strength of an electromagnet can typically be estimated by the product of current intensity and the number of turns:
- Strength of P = Current Intensity (20) × Number of Turns (20) = 400
- Strength of Q = Current Intensity (20) × Number of Turns (20) = 400
- Strength of R = Current Intensity (15) × Number of Turns (15) = 225
Based on these calculations, both P and Q have the same strength, which is greater than R.
Therefore, the order from strongest magnetic force to weakest magnetic force is:
P, Q, R
Final response: P, Q, R