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"Coulomb's law is only true for point charges whose sizes are" Multiple Choice Questions (MCQ) on types of motion with choices medium, very large, very small, and large for online learning. Practice electrostatics quiz questions for online certificate programs for online study.

MCQ: Coulomb's law is only true for point charges whose sizes are

1. medium
2. very large
3. very small
4. large

C

MCQ: As per Coulomb's law, the force of attraction or repulsion between two point charges is directly proportional to the

1. sum of the magnitude of charges
2. square of the distance between them
3. product of the magnitude of charges
4. cube of the distance

C

MCQ: The coulomb's force between the 2 point charges 10µC and 5µC placed at a distance of 150cm is

1. 0.2 N
2. 0.5 N
3. 2 N
4. 10 N

A

MCQ: The value of k in coulomb's law depends upon

1. magnitude of charges
2. distance between charges
3. medium between two charges
4. all of above

C

MCQ: If the medium between two charges is air, then the value of constant k in SI units will be

1. 5 × 109 Nm²C-2
2. 7 × 109 Nm²C-2
3. 8 × 109 Nm²C-2
4. 9 × 109 Nm²C-2

D