7.2 QUESTION 7(Start on a new page.)Two metal spheres, A and B, on insulated stands is placed with their centres 10 cmanart as shown in the sketch below. A has a charge of -15 nC and B an unknownpositive charge X.-15 nC2 cm8 cm10 cmThe net electric field at point P is 3,943 x 105 N.C1.7.1Define an electric field at a point.7.2Calculate the magnitude of the unknown charge X.The two spheres are made to touch and then returned to their original positions.Calculate the magnitude and direction of the new electrostatic force exertedby each sphere on the other.7.3Give TWO ways in which you can protect yourself from being struck bylightning when outside during a thunderstorm.7.473

Answered: Image /qna-images/answer/ccd19d40-f659-4bec-b6c7-1de5002e73dd.jpg

Two metal spheres, A and B, on insulated stands is placed with their centres 10 cm anart as shown in the sketch below. A has a charge of -15 nC and B an unknown positive charge X. -15 nC P. 2 cm 8 cm 10 cm The net electric field at point P is 3,943 x 105 N.C1. 7.1 Define an electric fleld at a point. 7.2 Calculate the magnitude of the unknown charge X.

Two metal spheres, A and B, on insulated stands is placed with their centres 10 cm anart as shown in the sketch below. A has a charge of -15 nC and B an unknown positive charge X. -15 nC P. 2 cm 8 cm 10 cm The net electric field at point P is 3,943 x 105 N.C1. 7.1 Define an electric fleld at a point. 7.2 Calculate the magnitude of the unknown charge X.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter19: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 10CQ

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