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Draw the pattern of magnetic field lines produced around a currentcarrying straight conductor passing perpendicularly through a horizontalcardboard. State and apply right-hand thumb rule to mark the directionof the field lines. How will the strength of the magnetic field change whenthe point where magnetic field is to be determined is moved away fromthe straight conductor? Give reason to justify your answer. |
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Answer» Right hand thumb rule: When holding thecurrent-carrying straight conductor inyourright handsuch that thethumbpoints towards thedirectionof thecurrent, the finger of theright handwrapsaroundtheconductor inthedirection of the field linesof themagnetic field. |
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