CHP33_Practice

# CHP33_Practice - 16 Both the electric field and the...

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Chp. 33 Electric Fields and Potential 1. T 2. F 3. T 4. T 5. F 6. B 7. C 8. B 9. D 10. C 11. A 12. A 13. B 14. The charge on the ball will have a (+) charge since negatively charged electrons were removed. The amount of charge will be 10,000 times the amount of charge on an electron (only positive, not negative) so: Charge on ball = + 10 5 * 1.6 * 10 -19 C = 1.6 * 10 -14 C 15. Force on an electron in an electric field of 200 N/C is: F = (-e) E = - 1.6 * 10 -19 C * 200 N/m = -3.2 * 10 -17 N The negative sign indicates that the force on the electron is opposite to the direction of the electric field.
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Unformatted text preview: 16. Both the electric field and the gravitational field obey the inverse square law; they get weaker with the square of the distance from the charges or masses responsible for the fields. The electric field acts on the charge of an object while the gravitational field acts on the mass of an object. The electric field can attract or repel an object (to or from the source of the field), while a gravitational field can only attract an object towards the source of the field....
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