To discuss: Two properties that a test charge must have.
Explanation of Solution
Introduction:
Test charge:
It is an infinitesimal imaginary charge. It is assumed to determine the effect of another charge or electric field present. It does not affect the electric field and other charge present around it.
The two properties that a test charge must have are:
- A test charge must have very small magnitude.
- By convention the test charge is assumed to be positive.
The reason for this small magnitude is that it will negligibly affect the field placed around it.
Since field originates from positive terminal and terminates in negative terminal so, with positive test charge the direction of field at any particular point is same as the direction of force experienced by that charge at that point.
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Chapter 21 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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