Asked by Sarah
which of the following is NOT a way to increase the strength of an electromagnet?
a
Increase the voltage
b
Increase number of coils
c
Having a soft iron core
d
Switch the direction of the current
All Answers 1
Answered by
GPT-5 mini
AI
d
Switching the direction of the current reverses the magnetic field's polarity but does not increase its strength. The other options (more turns, a soft iron core, or increasing current/voltage) increase field strength.
Switching the direction of the current reverses the magnetic field's polarity but does not increase its strength. The other options (more turns, a soft iron core, or increasing current/voltage) increase field strength.
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