Question

What is the smallest unit of charge that has been observed experimentally? A) plusminus 1/3e B) plusminus2/3 e C) plusminus 1.602 times 10^-19 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 robbed 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 statement that - "The sum of the magnitudes of the currents directed into a junction equals the sum of the magnitudes of the currents directed out of the junction" - is associated with which 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 F. as shown in the diagram. Upon exiting the capacitor the particle is traveling in the direction indicated by the arrow W the right of the capacitor. Which of the following is correct? A) The charge must be positive. B) The charge must be negative. C) Nothing can be determined concerning the sign of the charge. D) None of the other answers is correct.

Answer 1

Quarks have plus minus 1/3 e charge A plus minus 1/3 e (ecpuinuminally proven) the charge particle have field entering them while positively charged particles radiate out So, A the charge must be - ive 1.3) Red will be -ively charged and wool will be +ively charged c) wool will have a positive net charge 1.4) Kirchoff law (kirchhoff's first law or nodal rule) 1.5 F = qE^bar if change is +ive force = charge times electricity it moves Towards the direction of the firld. A) charge must be i + ve