Moderate

Two point charges of +5 C and -12 C attract each other with a force of 1.48 N. charge of -5 C is added to each of these charges. Now the force will be:

Correct answer: D. Zero

  • A. 1.48 N (attractive)
  • B. 1.48 N (repulsive)
  • C. 2.96 (repulsive)
  • D. Zero

Explanation

This question does not require any calculation. Just know that if we add -5C to both, it will leave the +5C point charge to become a charge of 0C, in other words without any charge, hence there will neither be an attractive or repulsive force in between.

Last updated

About Electromagnetism

Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.

Practise Electromagnetism

1,176 free Electromagnetism MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions