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QNEET-2013-Ph-1594: NEET 2013 Physics - Class 12 NEET-2013-Ph-1594 Solution: A charge q is placed at the centre of the line joining two…
A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium if q is equal to -Q/4 Q/4 -Q/2 Q/2
Multiple Choice Options
- A _ Q/4
- B Q/4
- C _ Q/2
- D Q/2
Step-by-Step Verified Solution
Let the distance between given changes be 2x
In equilibrium, | F _ A B | + | F _ A C | = 0
So, | F A B | = _ | F A C |
1 4 � _ 0 Q 2 4 x 2 = _ 1 4 � _ 0 Q q x 2
_ q = _ Q / 4