of the force exerted on \( \mathrm{Q} \) by q?. Ans: ( \( 3 \mathrm{~N} \) ) electrons must b charge of \( -3.0 \mu \mathrm{C} \), while a rod carries a charge of \( +2.0 \mu \mathrm{C} \). How many charge? Ans: (1.6 transferred from the plate to the rod, so that both objects have the same
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A plate carries a charge of $-3.0 \mu \mathrm{C},$ while a rod carries a charge of $+2.0 \mu \mathrm{C}$ . How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
Two point charges qA?=3 ?C and qB?=3 ?C are located 20 cm apart in vacuum. If a negative test charge of magnitude 1.5×10?9C is placed at this point, what is the force experienced by the test charge?
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Two point charges $q_{A}=3 \mu C$ and $q_{B}=-3 \mu C$ are located $20 \mathrm{~cm}$ apart in vacuum. (a) What is the electric field at the midpoint $\mathrm{O}$ of the line $\mathrm{AB}$ joining the two charges? (b) If a negative test charge of magnitude $1.5 \times 10^{-9} \mathrm{C}$ is placed at this point, what is the force experienced by the test charge?
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