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A toride has number of turns per unit length n, current i, then the magnetic field

A toride has number of turns per unit length n, current i, then the magnetic field

Question Image
Grade:12

1 Answers

Arun
25763 Points
one year ago

Let n be the number of turns per unit length, then the total number of turns is nh. The enclosed current Ie = I (nh), where I is the current in the solenoid.

BL = μ0Ie, Bh = μ0I(nh)
B = μ0nI

The direction of the field is given by the right-hand rule. The solenoid is commonly used to obtain a uniform magnetic field

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