PHY 171C Lab 2 v2.docx - Coulombs’ Law PHY 171C Lab 2...

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Coulombs’ Law PHY 171C Lab 2 Introduction Two electrically charged particles will exert a force on each other. The size of this force is determined by Coulomb’s law: Force = 9 × 10 9 charge 1 ×charge 2 distanc e 2 . In symbol form, the equation is F = 9 × 10 9 q 1 q 2 d 2 , where q is the symbol for charge. Using SI units of meters for distance and coulombs for charge, the force will be in units of newtons. There are two types of electric charge: positive and negative. Charges of the same type will repel each other while charges of the opposite type will attract each other. Apparatus : Simulations linked to below. Part 1 1. Click this link to open the first simulation . In this simulation, there are five numbered charges which are fixed in place. A positive , red test charge can be dragged by your mouse. The arrow coming from the test charge shows the direction and magnitude of the net Coulomb force on the charge. Using the red test charge, determine the sign of each numbered charge. Charge 1 2 3 4 5 Positive 3 4 5 Negative 1 2 2. Briefly explain how you determined the signs of the charges.
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  • Winter '19
  • Bruce Palmquist
  • Electric charge, Show Angle

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