Question

7. The electric field is zero: a. inside any conductor. inside any conductor with a static charge. inside any material, conductor or insulator, with a static charge. d. Never e. Always. I there is a force of 5.0 x 1012 N acting to the left on an electron, the electric field intensity at the location of this electron will be: a. zero. b. 8.0 x 103 N/C to the left c. 3.1 x 10" N/C to the left 3.1 x 107 N/C to the right none of these e. 9 If the symbols 1 and I are used to represent a pair of charged plates, in the sketch below, +1 the field between the two plates would be directed: a. upward. b. to the left. c. to the right. zero, so its direction would be without meaning. none of these c. 10. The arrows below could represent the pattern of an electric field around: a. a positive ion at the center. b. any "point" charge at the center. e. an electron or a negative ion at the center d. a dipole, a + and -charge pair, since the electric field goes both left and right, both up and down. none of these. e. 11. The molecular chains of the DNA double helix are held together by bonds between Adenine and Thymine the other base pair, Cytosine and Guanaine. What is the force involved if one of these bonds is modeled as electron 1.8 x 10-10 m away from a proton? a. It is less than 10-T0 N b. 7.1 x 10 N. c. 4.4x 10 N. d. 8,0 N e. It is more than 102 N 12. Electric potential, or potential, and electric potential energy are: unrelated to each other. a. b. directly proportional to each other. c. inversely proportional to cach other. d. different names for the same thing. e. yet to be confirmed experimentally

Answer 1