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Concept questions

Concept questions. Discussed in class.

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Concept questions

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  1. Concept questions Discussed in class

  2. Two test charges are brought separately into the vicinity of a charge +Q. First, test charge +qis brought to point Aa distance rfrom +Q. Next, +qis removed and a test charge +2qis brought to point Ba distance 2rfrom +Q. Compared with the electrostatic potential of the charge at A, that of the charge at Bis 1. greater. 2. smaller. 3. the same.

  3. Two test charges are brought separately into the vicinity of a charge +Q. First, test charge +qis brought to a point a distance rfrom +Q. Then this charge is removed and test charge –qis brought to the same point. The electrostatic potential energy of which test charge is greater: 1. +q 2. –q 3. It is the same for both.

  4. An electron is pushed into an electric field where it acquires a 1-V electrical potential. Suppose instead that two electrons are pushed the same distance into the same electric field. The electrical potential of the two electrons is 1. 0.25 V. 2. 0.5 V. 3. 1 V. 4. 2 V. 5. 4 V.

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