Two parallel wires, A and B, carry currents in the same direction. wire A Y wire

Question

Two parallel wires, A and B, carry currents in the same direction.

wire A

                                       Y

wire b

Refer to the above diagram. At position Y, between the two current-carrying wires, the directions of the
magnetic fields of wire A and B, respectively, are:
a. out ofthe page, out ofthe page c. out ofthe page, into the page
b. into the page, out of the page d. into the page, into the page

(can someone please describe the answer in detail)

The governing physical principle determining the generation of an induced voltage in a coil of wire is:
a. 2 current-carrying wires exert forces on one another
b. a current through a coil of wire creates a magnetic force
c. the magnetic field strength varies as the inverse square law
d. a current is induced in a wire moving through a magnetic field

( I answered b)

Explanation / Answer

b. into the page, out of the page

Applying the right hand thumb rule on wire A, the fingers curl in the dirn into the page and vice-versa for the wire B

d. a current is induced in a wire moving through a magnetic field

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