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Identify the correct statement about the charges $\;q_{1} \;and\; q_{2}$

$(a)\;both\;are\;positive\qquad(b)\;both\;are\;negative\qquad(c)\;q_{1}\;is\;positive\;and\;q_{2}\;is\;negative\qquad(d)\;none $

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  • The SI unit of quantity of electric charge is the coulomb, which is equivalent to about $6.242 \times 10^{18}$ e (e is the charge of a proton). Hence, the charge of an electron is approximately $−1.602 \times 10^{−19}$ C.
Answer : (b) $\;both\;are\;negative$
Explanation : Field lines are coming towards both of the charges . Hence are negative.
answered Jan 29, 2014 by yamini.v
 

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