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10th Class Science Magnetic Effects of Electric Current Question Bank 10th CBSE Science Magnetic Effects of Electric Current

  • question_answer
      How will the magnetic field intensity at the centre of a circular coil carrying-current change, if the current through the coil is doubled and radius is halved?        

    Answer:

                      As, magnitude of magnetic field,  current, I and magnitude of magnetic field,  then magnetic field becomes 4 times its original value.


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