a charge q1 exerts some force on a second charge q2 . if a third charge q3 is brought near q2, the force exerted by q1 on q2:
decreases
increases
remains the same
increases if q3 is of same sign as q1, and decreases if q3 is of oppossite sign as q1
none of the above
Answers
Explanation:
The charge q1 and q2 are initially in a system which is then introduced by charge q3. The force experienced by q2 exerted by q1 remains same.
The force exerted by the charge q1 on q2 will remain same on introduction of a third charge q3 in near about of q1 and q2.
The force exerted on q2 by q1 will be F1.
Let us assume, then force on q2 by q3 be F2.
Therefore the net force of the system be change on introduction of charge,
Net force = F1 + F2
But the charge q2 will experience force exerted by q1 will still remain same which is of F1.
Answer:
answer is remains constant.
reason: acc. to superposition principle: the forces exerted between two charges remains same (until the distance of separation remains same) and independent of all other charges in the universe.