A long straight wire in the horizontal plane carries a current of 50A in north to south direction. Give the magnitude and direction of `vecB` at a point `2*5m` east of the wire.

Explanation

To solve the problem of finding the magnetic field \( \vec{B} \) at a point 2.5 m east of a long straight wire carrying a current of 50 A in the north to south direction, we can follow these steps:

### Step 1: Identify the Direction of Current
The current flows from north to south. We can visualize this by drawing a straight line representing the wire, with an arrow pointing from the north to the south.

### Step 2: Determine the Position of the Point
The point where we want to find the magnetic field is 2.5 m east of the wire. We can denote this point as point P.

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