A steady current (I1) flows through …
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A steady current (I1) flows through a long straight wire. Another wire carrying
steady current (I2) in the same direction is kept close and parallel to the first
wire. Show with the help of a diagram how the magnetic field due to the current
I1 exerts a magnetic force on the second wire. Write the expression for this
force
Posted by Doney Abhishek 5 years, 1 month ago
- 1 answers
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Gaurav Seth 5 years, 1 month ago
Suppose two long thin straight conductors (or wires) PQ and RS are placed parallel to each other in vacuum (or air) carrying currents I1 and I2 respectively. It has been observed experimentally that when the currents in the wire are in the same direction, they experience an attractive force and when they carry currents in opposite directions, they experience a repulsive force. Let the conductors PQ and RS carry currents I1 and I2 in same direction and placed at separation r. Consider a current–element ‘ab’ of length ΔL of wire RS. The magnetic field produced by current-carrying conductor PQ at the location of other wire RS
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