alleryHow can you make a coil electromagnet stronger by changing the coil?
AUse fewer loops
BAdd more loops of wire
CRemove the wire
DCut the wire shorter
Answer & Solution
Correct answer: B. Add more loops of wire
1. An electromagnet's field comes from its wire loops.
2. The field is proportional to the number of loops.
3. So adding more loops makes it stronger.
_Source: Wikipedia, Magnet, Electromagnets_
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