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 find the magnitude and direction of 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 formula for the magnetic field around a long straight current-carrying wire.
The magnetic field \( \vec{B} \) at a distance \( r \) from a long straight wire carrying current \( I \) is given by the formula:
\[ B = \frac{\mu_0 I}{2 \pi r} \]
where:
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