Question

The strength of the magnetic field due to wire AB carrying current will be B at point p,

then what will be the magnetic field at point Q.​

Answer 1

Explanation:

Let’s say you have a toy car, and it’s sitting in front of a regular bathroom mirror. The distance between the car and mirror is called the object distance, and it’s always positive. If you look at the image of the toy car in the mirror, it will appear to be the same distance behind the mirror as the real car is in front of the mirror, at the same height. It will also appear to be the same size as the real car. The image of the car looks like it’s behind the mirror (and the light we see does not directly emerge from the image), we say that the image is upright and virtual, and that the image distance is negative.

Viewer and car on one side of the mirror, virtual car on the other side of the mirror with rays traced; dotted on virtual side