Two long, parallel wires carry currents of 20 A and 10 Ain
Chapter , Problem 14(choose chapter or problem)
Two long, parallel wires carry currents of 20 A and 10 Ain opposite directions, as in Figure MCQ19.14. Whichof the following statements must be true? (There maybe more than one correct statement.) (a) In region Ithe magnetic field is into the page and is never zero.(b) In region II the field is into the page and can bezero. (c) In region III it is possible for the field to bezero. (d) In region I the magnetic field is out of thepage and is never zero. (e) There are no points wherethe field is zero.
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