Physics-
General
Easy
Question
An infinitely long straight conductor 
is fixed and a current is passed through it. Another movable straight wire 
of finite length and carrying current is held perpendicular to it and released. Neglect weight of the wire
- The rod will move upwards parallel to itself
- The rod will move downward parallel to itself
- The rod will move upward and turn clockwise at the same time
- The rod will move upward and turn anti-clockwise at the same time
will move upwards parallel to itself
will move downward parallel to itself
will move upward and turn clockwise at the same time
will move upward and turn anti-clockwise at the same time
The correct answer is: The rod will move upward and turn clockwise at the same time
Since the force on the rod is non-uniform it will experience force and torque. From the left hand side it can be seen that the force will be upward and torque is clockwise
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