Magnetic field due to a long straight Solenoid
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A solenoid is a tightly wound helical loop from a
insulated wire and the length is very large compared to its radius.
A solenoid is a tightly wound helical loop from a
insulated wire and the length is very large compared to its radius.
Total number of turns of the solenoid = n L
Total enclosed current = n L I
According to Amphere's circuital law,
B = μ0 n I
