The picture shows two long, parallel wires. The upper wire carries a current of 3.0 A to the right. and the lower wire carries a current of 1.0 A to the left.

Estimate Following:
[1.] Fiind the magnitude of øB – ds when the integral is taken along path B in the diagram? (μo= 8.85 x 10-12 F/m)

[2.] Find the value of the integral øB – ds when the integral is taken along path A in the diagram (μo=8.85 x 10-12 F/m)

[3.] A rectangular loop of wire is placed midway between two long straight parallel conductors, as shown. The conductors carry currents i1 = 10 A & i2 = 20 A in a direction as indicated. If i1 is increasing at 1 A/sec. Compute the magnitude & direction (clockwise or counter clockwise) of the current which is induced in the loop.