Fig. 1: Two point charges. 1) What is the distance between Q, and point A in Fig. 1 if the electric field at point A is 0? a) 0.1 cm b) 1 cm c) 20 cm d) 30 cm e) none of above ANS: Q 10 ne 15 cm 7.5 cm Q30 nc Q=-20 nc 15 cm 15 cm Fig 2: Three point charges.

Fig. 1: Two point charges. 1) What is the distance between Q, and point A in Fig. 1 if the electric field at point A is 0? a) 0.1 cm b) 1 cm c) 20 cm d) 30 cm e) none of above ANS: Q 10 ne 15 cm 7.5 cm Q30 nc Q=-20 nc 15 cm 15 cm Fig 2: Three point charges.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 26CQ: (a) Using the symmetry of the arrangement, show that the electric field at the center of the square...

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Question

Fig. 1: Two point charges.
1) What is the distance between Q, and point A in Fig. 1 if the electric field at point A is 0?
a) 0.1 cm
b) 1 cm
c) 20 cm
d) 30 cm
e) none of above
ANS:
Q= 10 nc
15 cm
7.5 cm
Q,- 30 nc
Q2=-20 nc
15 cm
15 cm
Fig 2: Three point charges.

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