If same amount of current is passed through each of the following then which one will show the strongest magnetic strength?

Solenoid wound on a wooden core

If same amount of current is passed through each of the following then

1.	If same amount of current is passed through each of the following then which one will show the strongest magnetic strength?
A.	Straight conducting wire
B.	Solenoid wound on an iron core
C.	Coil of wire
D.	Solenoid wound on a wooden core
Answer» C. Coil of wire

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If same amount of current is passed through each of the following then which one will show the strongest magnetic strength?

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