A straight horizontal wire of mass 10mg and length 1.0 cm carries a current of 2.0 A. what minimum megnetic field B should be applied in the region so that the magnetic force on the wire may balance its weight?

Explanation

To solve the problem, we need to find the minimum magnetic field \( B \) that will balance the weight of the wire with the magnetic force acting on it. Let's break down the solution step by step.

### Step 1: Calculate the weight of the wire
The weight \( W \) of the wire can be calculated using the formula:
\[ W = mg \]
where:
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