Question

Two straight infinitely long wires are fixed in space so that the current in the

left wire is 2 A and directed out of the plane of the page and the current in

the right wire is 3 A and directed into the plane of the page. In which

region(s) is/are there a point on the x-axis, at which the magnetic field is

equal to zero due to these currents carrying wires? Justify your answer.







konse chapter ka topic hai?​

Answer 1

ANSWER :-

Net Magnetic Field may be possibly zero in

☆ REGION 1 :

So, the current carrying wires are present along the Y axis , such that 2A wire is along +Y axis and 3A wire is along -Y axis.

Now, in region 1:

• Magnetic field intensity due to 2A wire will be directed along +Z axis.
• Magnetic field intensity due to 3A wire will be directed along -Z axis.
• Hence they can cancel each other such that the net magnetic field intensity will become zero.
• Another thing to keep in mind is the distance of the wire from the neutral point in region 1.

➦ 3A current is more in amount but distance is greater.

➦ 2A current is less in amount but distance is less.

Hence , final answer is region 1. ☆

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