A wire of indefinite length crossed by a current/= 0.2Ais placed at a distance h = 20 cm from a second indefinite wire parallel to i t. What current must flow in the second wire and in what direction, so that the force per unit of length between the two wires is attractiv e, and has an intensity F₁ = 1µN/m? O 10 A, in the same direction as I 10 A, in the opposite direction of I 1 O 5A, in the opposite direction of 1 1 O 5A, in the same direction as 1 1
A wire of indefinite length crossed by a current/= 0.2Ais placed at a distance h = 20 cm from a second indefinite wire parallel to i t. What current must flow in the second wire and in what direction, so that the force per unit of length between the two wires is attractiv e, and has an intensity F₁ = 1µN/m? O 10 A, in the same direction as I 10 A, in the opposite direction of I 1 O 5A, in the opposite direction of 1 1 O 5A, in the same direction as 1 1
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Transcribed Image Text:A wire of indefinite length crossed by a current = 0.2Ais placed at a distance h = 20 cm from a second indefinite wire parallel to i
t. What current must flow in the second wire and in what direction, so that the force per unit of length between the two wires is attractiv
e, and has an intensity F H 1µN/m²
10 A, in the same direction as I
1
O 10 A, in the opposite direction of I
1
O 5A, in the opposite direction of 1
4
O 5 A, in the same direction as 1
1
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