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?

विकल्प

• Only w, y and z

• Only w, x and y

• Only x, y and z

• All four

Answer 1

All four.