Charges of +3 µc and –5 µc are 2 mm from each other. the –5 µc charge is replaced with a +5 µc charge. how will the electrical force between the charges compare with the original force? a) same force, but in the opposite direction b) same force, but in the same direction c) greater force, but in the opposite direction d) greater force, but in the same direction

A) same force, but in the opposite direction

Explanation:

As we know that the force of attraction or repulsion between two charges is given by coulomb's law

It is given as

now we know that initially the two charges are

finally we replace the second charge by another charge of same magnitude but opposite in sign

so here we have

magnitude of force will remain same but the attraction force will convert into repulsion force

so correct answer will be

A) same force, but in the opposite direction

a and c

explanation:

both a and c are correct answers to my knowledge, it's been a bit since i've done anything related to magnetic fields, but it should be right.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.