Question

Two thick wires and two thin wires, all of the same material and same length, form a souare in three oferent
ways A, B and C as shown in the figure. With correct connections shown, the magnetic field at the centre
of the square is zero in case of​

Answer 1

The currents in the two halves then make the field at centre zero.

Explanation:

As per the statement of the question:

We are given that:

Number of thick wired = 2

Number of thin wires = 2

The wires have same material and same length.

Therefore we can say that

• In P and R only, current divides equally in the two halves because of equal resistances in the two halves.
• The currents in the two halves then make the field at centre zero.

Also learn more

The earth's magnetic field at a given point is 0.5 x 10^-5 Wb/m2. This field is to be annulled by magnetic induction at the centre of a circular loop of radius 5 cm. The current required to be flown in the loop is nearly ------ A. ?

https://brainly.in/question/6750639

Answer 2

Answer is A &C

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