Which of the following increases the strength of electromagnet?
A. Increase the current
B. Decrease the length of the wire
C. Change the switch
D. Use plastic as the core
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Which of the following increases the strength of electromagnet?
A. Increase the current
B. Decrease the length of the wire
C. Change the switch
D. Use plastic as the core
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Answer:
Which of the following increases the strength of electromagnet?
A. Increase the current
B. Decrease the length of the wire
C. Change the switch
D. Use plastic as the core
Explanation:
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answer is A
Explanation:
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