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• 1- If two charges both having charge 7.5 nC exert a 17.2 MN force on each other, then how far apart are the charges?
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• 2- What is the potential difference moving 0.6 meters along a 34.3 V/m uniform electric field?
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• 3 What is the radius of a circular loop of 12.4 kA current which produces a 39.1 mT magnetic field at its center?
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• 4- What is the magnitude of the emf generated in a loop of wire having area 0.5 m² if the magnetic field through the loop changes from 5 W to 9 T in 0.15 seconds?
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• 5- If the electron charge is 1.602 x 10^-19 C, then how many electrons are in 3.1 fC of charge? (f = x10^-15)

Answer rating: 100% (QA)

1 The force between two charges can be calculated using Coulombs law F kq1q2r2 Given F 172 MN q1 q2 75 nC and k approx 899109 NmC we can rearrange the ... View the full answer