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Questions and Answers
Which of the following statements about electric field lines is true?
Which of the following statements about electric field lines is true?
- Electric field lines always point from positive charges to negative charges. (correct)
- Electric field lines cannot cross each other.
- Electric field lines are always straight and parallel to each other.
- Electric field lines always point from negative charges to positive charges.
Which of the following materials is the best insulator?
Which of the following materials is the best insulator?
- Aluminum
- Copper
- Glass (correct)
- Silver
Which of the following is a common unit of electric charge?
Which of the following is a common unit of electric charge?
- Coulomb (correct)
- Watt
- Ohm
- Ampere
Which of the following statements about Coulomb's law is incorrect?
Which of the following statements about Coulomb's law is incorrect?
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Which of the following is not a property of an electric field?
Which of the following is not a property of an electric field?
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Which of the following is not true about electric potential?
Which of the following is not true about electric potential?
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