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Question
A straight wire lying in a horizontal plane carries a current from north to south.
(a) What will be the direction of magnetic field at a point just underneath it?
(b) Name the law used to arrive at the answer in part (a).
A straight wire lying in a horizontal plane carries a current from north to south.
(a) What will be the direction of magnetic field at a point just underneath it?
(b) Name the law used to arrive at the answer in part (a).
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Solution
(a) The direction of magnetic field at a point just underneath is towards east.
(b) The direction can be found out using the right-hand thumb rule.
(a) The direction of magnetic field at a point just underneath is towards east.
(b) The direction can be found out using the right-hand thumb rule.
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