Question

For the following questions, indicate your answer on a with a pencil. Any needed constants can be found on the equation sheet Use the following coordinate directions: +i is toward right. +j is up, -k is out of the page For questions 1-3, a solid insulating sphere with radius O.8 cm on has a charge of Q_1 = 15 rho C distributed evenly throughout. Points A and B are shown, positioned directly to the left of the charge. What is the electric field the charge Q_1 creates at point A as a vector? A) -4.6 times 10^7 N/C B) 6.3 times 10^7 N/C C) -2.5 times 10^6 N/C D) 4.6 times 10^7 N/C E) -6.3 times 10^7 N/C If a second charge with Q_2 = -7.8 mu C is placed at the point B. what force will the charge Q_1 exert on it as a vector? A) 28 N B) -770 N C) -650 N D) 770 N E) -28 N With the charge Q_2 at position A (and Q_1 is still positioned as shown), what is the electric potential at the point B? A) 7.8 times 10^6 V B) 4.9 times 10^6 V C)2.3 times l0^6 V D) -4.8 times 10^5 V E) -2.9 times 10^6 V What is the magnitude of the electric field a distance of 7.5cm from a line of charge with a uniform line charge density of 0.34 C/m? A) 7.3 times 10^11 N/C B) 8.2 times 10^10 N/C C) 4.0 times 10^10 N/C D) 5.4 times 10^11 N/C E) 1.8 times 10^12 N/C

Answer 1

S.4 X10 3. 911