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प्रश्न
Two long parallel wires kept 2 m apart carry 3A current each, in the same direction. The force per unit length on one wire due to the other is ______.
पर्याय
4.5 × 10-5 Nm-1, attractive
4.5 × 10-7 N/m, repulsive
9 × 10-7 N/m, attractive
9 × 10-5 N/m, attractive
उत्तर
Two long parallel wires kept 2 m apart carry 3A current each, in the same direction. The force per unit length on one wire due to the other is 9 × 10-7 N/m, attractive.
Explanation:
Given I1 = I2 = 3 A, d = 2 m, the current is flowing in the same direction,
Now, `F/l = (mu_0I_1I_2)/(2pid)`
= `(4pi xx 10^-7 xx 3 xx 3)/(2pi xx 2)`
= 9 × 10-7 N/m
`F/l = 9 xx 10^-7` N/m
संबंधित प्रश्न
The figure shows three infinitely long straight parallel current carrying conductors. Find the
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(ii) magnetic force on conductor 2.
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(b) minimum at the axis of the wire
(c) maximum at the surface of the wire
(d) minimum at the surface of the wire.
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Define Ampere in terms of force between two current carrying conductors.
Answer the following question.
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