Physics Review Question Unit: Electricity and magnetism Year: 1990 Question#: 28 Question: If the charge on two small spheres a fixed distance apart is doubled, the force of attraction between the spheres will be (1 ) quartered (2 ) doubled (3 ) halved (4 ) quadrupled What is this question really asking? Explanation by: zac D [ Return to question menu ] Answer 1 quatered INCORRECT Because the charge is increased on the two spheres, the force of attraction will also increase. return to top Answer 2 doubled INCORRECT By using the formula F= kq1q2/r2 the charges (represented as q) multiplied together will cause the force of attraction to be quadrupled, not doubled. return to top Answer 3 halved INCORRECT Because the charge on each of the spheres would increase, the force of attraction would also increase. return to top Answer 4 quadrupled CORRECT By using the formula F= kq1q2/r2 multiplying the charges will cause the force to be quadrupled. return to top What's this question really asking? What is the formula for electrostatic force? return to top |
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