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प्रश्न
Two charge – 10c and + 10 c are placed 10 cm apart. Potential at centre of the line joining the two charge is:-
विकल्प
Zero
2V
– 2V
None of these
MCQ
उत्तर
Zero
Explanation:
V = `1/(4piε_0r) (q_1+ q_2)`
= `(9 xx 10^9)/(5 xx 10^-2) (-10 + 10)` = zero.
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