A circular loop has radius R and carries a current Д in a clock-wise direction, as shown in the figure below. H I2 The centre of this loop is a distance d above a long, straight wire which carries a current 12. What should I be (magnitude and direction) in order for the magnetic field at the centre of the circular loop to be zero?
A circular loop has radius R and carries a current Д in a clock-wise direction, as shown in the figure below. H I2 The centre of this loop is a distance d above a long, straight wire which carries a current 12. What should I be (magnitude and direction) in order for the magnetic field at the centre of the circular loop to be zero?
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Transcribed Image Text:A circular loop has radius R and carries a current Д in a clock-wise direction, as shown
in the figure below.
H
I2
The centre of this loop is a distance d above a long, straight wire which carries a current
12. What should I be (magnitude and direction) in order for the magnetic field at the
centre of the circular loop to be zero?
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