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1) Two long conducting wires are 30 cm apart. One carries acurrent of 25 A, and the other carries a current of 65 A. Find all locations where the net magnetic field of the two wires are zero if the currents are:

A) In the same direction

B) In opposite direction

2) A solenoid is designed to produce a magnetic field of0.034 T at its center. It has a radius of 2.0 cm, and is 35 cm inlength. It can carry a maximum current of 12 A.

A) What is the minimum number of turns per unit length thatthe solenoid must have?

B) What is the required total length of the wire?

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Category:- Physics
Reference No.:- M91101399

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