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Question
Choose the correct answer.
Consider following forces: (w) Force due to tension along a string, (x) Normal force given by a surface, (y) Force due to air resistance, and (z) Buoyant force or upthrust given by a fluid.
Which of these are electromagnetic forces?
Options
Only w, y and z
Only w, x and y
Only x, y and z
All four
Solution
All four.
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