12. I wish to use a positively charged rod to charge a ball by induction. Which
ID: 2034752 • Letter: 1
Question
12. I wish to use a positively charged rod to charge a ball by induction. Which statement is correct? a. The ball must be an insulator that is connected temporarily to the ground. b. The ball must be a conductor c. The ball is charged as the area of contact between the two increases. d. The charge on the ball will be positive. 13. An electron with a charge value of 1.6 x 10-19 c is moving in the presence of an electric field of 400 N/C. What force does the electron experience? a. 1.9 × 10-21 N b. 6.4 ×10-17N 2.3 x 10-22 N 4.9 x 10-17N c. d.Explanation / Answer
12.
To transfer charge through induction, both object must be conductor
Correct option is B.
13.
Electrostatic force is given by:
F = q*E
F = 1.6*10^-19*400
F = 6.4*10^-17 N
Correct option is B.
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