Write your answers as A, B, C, D, E, etc. on the answer page. Any answers NOT re
ID: 1620319 • Letter: W
Question
Write your answers as A, B, C, D, E, etc. on the answer page. Any answers NOT recorded on the cover sheet will NOT be counted. What is the smallest unit of charge that has been observed experimentally? A) plusminus 1/3 e B) plusminus 2/3 e C) plusminus 1.602 times 10^-19 C D) plusminus 1.000 C E) plusminus 5.0 times 10^-27 C What is true concerning the charge in the diagram to the right according to the electric field lines shown? A) The charge must be negative. B) The charge must be positive. C. Nothing can be determined about the charge from the field lines. A rubber rod is rubbed with wool and becomes charged by friction. Which of the following is most correct? A) The sign of the charge on the wool can't be determined. B) The wool will have a negative net charge. C) The wool will have a positive net charge. D) The rod will have a positive net charge. The equation V = IR is associated with individual? A) Ampere B) Einstein C) Guass D) Kirchhoff E) Volta A charged particle Q is traveling horizontally toward a parallel plate capacitor with a uniform electric field E as shown in the diagram. Upon exiting the capacitor the particle is traveling in the direction indicated by the arrow to the right of the capacitor. Which of the following is correct? A) The charge must be positive. B) The charge must be negative. C) Noting can be determined concerning the sign of the charge. D) None of the other answers is correct.Explanation / Answer
part a)
free chagre = +e or -e (1.602 x 10^-19 C)
part b )
the charge must be positive
because postive charge line away from charge
part c )
silk have a net negative charge
When a glass rod is rubbed with silk, the glass rod gives up electrons and becomes positively charged. The silk becomes negatively charged since it now has excess electrons. The source of these electric charges is friction.
part d)
V = IR
related to ohm's law
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