Practice Mathematical Form (2.2) - Electrostatics

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8 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does Coulomb's Law state about the forces between two charges?
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Think about how charges interact with each other.
Question 2.
Define an electric field in your own words.
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Consider the effect of a charge on another charge placed nearby.
3Question 3.
What does Coulomb's Law relate to the distance between two charges?
- It is directly proportional
- It is inversely proportional
- It is independent
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Remember the structure of Coulomb's Law.
4Question 4.
True or False: The electric field always points away from positive charges.
- True
- False
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Visualize how electric field lines behave.
Question 5.
Two charges, +3μC and -3μC, are placed 0.2 m apart in a vacuum. Find the electrostatic force between them and specify its nature.
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Carefully consider the signs of the charges.
Question 6.
A charge of +10μC is fixed, and a second charge of unknown magnitude is placed 0.1 m away from it and experiences a force of 0.02 N. What is the magnitude of the second charge?
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You need to isolate the unknown charge in your final formula.

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