Strength of Magnetic Forces Quick Check

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Question
Use the table of information about four electromagnets to answer the question.

Electromagnet Current Intensity Number of Turns in the Wire
W medium 10
X low 10
Y medium 50
Z low 50
Which electromagnet will produce the strongest magnetic force?

(1 point)
Responses

electromagnet X
electromagnet X

electromagnet W
electromagnet W

electromagnet Y
electromagnet Y

electromagnet Z
electromagnet Z
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1 answer

To determine which electromagnet produces the strongest magnetic force, we need to consider both the current intensity and the number of turns in the wire. The strength of the magnetic field (B) created by an electromagnet can generally be estimated with the formula:

\[ B \propto (N \times I) \]

where \( N \) is the number of turns and \( I \) is the current intensity.

Now, let’s evaluate the given electromagnets:

  • Electromagnet W: Current is medium, Number of turns = 10
  • Electromagnet X: Current is low, Number of turns = 10
  • Electromagnet Y: Current is medium, Number of turns = 50
  • Electromagnet Z: Current is low, Number of turns = 50

Now we’ll assign relative intensity values to "low" and "medium":

  • For simplicity, let's assume "low" = 1 and "medium" = 2.

Thus:

  • Electromagnet W: \( B \propto (2 \times 10) = 20 \)
  • Electromagnet X: \( B \propto (1 \times 10) = 10 \)
  • Electromagnet Y: \( B \propto (2 \times 50) = 100 \)
  • Electromagnet Z: \( B \propto (1 \times 50) = 50 \)

Based on these calculations, Electromagnet Y, with a product of 100, will produce the strongest magnetic force.

Therefore, the answer is: Electromagnet Y.