Electrostatics Question 368

Question: Two positive charges of 20 coulomb and Q coulomb are situated at a distance of 60cm . The neutral point between them is at a distance of 20cm from the 20coulomb charge. Charge Q is

Options:

A) 30C

B) 40C

C) 60C

D) 80C

Show Answer

Answer:

Correct Answer: D

Solution:

At neutral point k×20(20×102)2=k×Q(40×102)2

therefore Q = 80 C



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