Question

Magnetic field of solenoid

1)Earth's geographic North pole is the north pole of the earth's magnetic field. True or False?

2) When you double the number of windings in a solenoid keeping all other parameters (radius, length and current) fixed, the magnetic field at the center of the solenoid will

a) double

b) triple

c) quadruple

d) be reduced to one-fourth as much

e) be reduced to half as much

Answer 1

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