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Questions and Answers
What is the electric field around a charged object?
What is the electric field around a charged object?
- A region of space where the charged object is neutral
- A force that only exists within the charged object
- A scalar quantity that repels other charged objects
- A vector quantity that exerts attractive or repulsive forces on other charged objects (correct)
What determines the strength of the electric field?
What determines the strength of the electric field?
- Neither the magnitude of the test charge nor the source charge
- Only the magnitude of the test charge
- Both the magnitude of the test charge and the source charge (correct)
- Only the magnitude of the source charge
What is the purpose of introducing a test charge in an electric field?
What is the purpose of introducing a test charge in an electric field?
- To increase the strength of the electric field
- To cancel out the electric field
- To measure the strength of the electric field (correct)
- To decrease the strength of the electric field
What is the unit of electric field strength?
What is the unit of electric field strength?
What happens to the electric field if the source charge is negative?
What happens to the electric field if the source charge is negative?
What is the purpose of the concept of a test charge?
What is the purpose of the concept of a test charge?
What is the direction of the electric field around a positive charge?
What is the direction of the electric field around a positive charge?
What is the net electric field intensity on a positive test charge located between two point charges?
What is the net electric field intensity on a positive test charge located between two point charges?
What is the purpose of an electric field mill?
What is the purpose of an electric field mill?
Why is the ionosphere positively charged?
Why is the ionosphere positively charged?
What is the purpose of an electrostatic precipitator?
What is the purpose of an electrostatic precipitator?
What happens when a new charge is placed in an electric field?
What happens when a new charge is placed in an electric field?
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