A long straight wire is in the plane of a rectangular conducting loop. The straight wire carries an increasing current in the direction shown. The current in the rectangle is: 
Definitions:
Glass
A hard, brittle substance, commonly transparent or translucent, made by fusing sand with soda, lime, and sometimes other ingredients and cooling rapidly.
Volume
The quantity of three-dimensional space enclosed by a closed surface or the space that a substance (solid, liquid, gas, or plasma) occupies.
Milliliters
A unit of volume in the metric system, equivalent to one thousandth of a liter.
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