Physics-
General
Easy
Question
A water molecule as shown is in a region of uniform electric field 
This molecule experiences
- A counterclockwise torque
- A clockwise torque
- A net force to the right
- A net force to the left
The correct answer is: A counterclockwise torque
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The diagram shows a uniformly charged hemisphere of radius R. It has volume charge density 
. If the electric field at a point 2R distance above its center is E then what is the electric field at the point which is 2R below its center?
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and 
. From examining this plot we can deduce that
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The dipole on the right
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We have two electric dipoles. Each dipole consists of two equal and opposite point charges at the end of an insulating rod of length d. The dipoles are placed along the x-axis at a large distance r apart oriented as shown below:
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