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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Physics (PH)
(6) two long straight wires are parallel and 8 cm apar they are to carry equal currents such that the magnetic field at a point halfway between them has magnitu
(6) Two long straight wires are parallel and 8 cm apar They are to carry equal currents such that the magnetic field at a point halfway between them has magnitude 300 T: (i) Should the current be in the same or opposite directions ? CO (i) How much current is needed? Ver 21%+21/
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Dr suman 1 Best Answer
The currents must be opposite or antiparallel, so that the resulting fields are in the same direction in the region between the wires. If the currents are parallel, then the two fields are in opposite directions in the region between the wires. Since the currents are the same, the total field is zero along the line that runs halfway between the wires.
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Akhilesh Pareek
Ma'am but current must be parallel
no, when it will paraslel, then due to one wire feild line are incoming or into the page and due to other outward means outcoming, so total feild is zero between the wires. use right hand thumbs rule, point thumb in direction of current, Curley fingers tells you about feild direction