Question Detail

PHY 102 Coulomb's law and Electric Fields Objective Question
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Question

Which of the following best describes an ideal 'Test-Charge' in an electric system?
Options
A A large charge used to measure strong fields.
B A small charge that significantly alters its environment.
C A very small charge, tiny in magnitude and physical size, with a negligible effect on its environment.
Correct Answer
D A charge that only exists in theory and cannot be used in measurements.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 3 states: 'A test-charge is a very small charge that can be used in making measurements on an electric system. It is assumed that such a charge, which is tiny both in magnitude and physical size, has a negligible effect on its environment.'

Hint

Consider the purpose of a 'test' charge and its ideal properties to avoid influencing the system being measured.

Question Info

Course: PHY 102
Topic: Coulomb's law and Electric Fields
Type: Objective
Difficulty: Not specified
Question 838 of 1819
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