1- What is the relationship between the direction of electric field and that of
ID: 1548395 • Letter: 1
Question
1- What is the relationship between the direction of electric field and that of the electric force on a test charge?
If the test charge is positive, the electric force on the test charge is along the direction of electric field.
If the test charge is negative, the electric force on the test charge is along the direction of electric field.
If the test charge is positive, the electric force on the test charge is opposite to the direction of electric field.
If the test charge is negative, the electric force on the test charge is perpendicular to the direction of electric field.
2- At a point that is to the left of a negative charge, what is the direction of the electric field generated by the negative charge?
The electric field points to the left.
The electric field points to the right.
The electric field points upward.
The electric field points downward.
If the test charge is positive, the electric force on the test charge is along the direction of electric field.
If the test charge is negative, the electric force on the test charge is along the direction of electric field.
If the test charge is positive, the electric force on the test charge is opposite to the direction of electric field.
If the test charge is negative, the electric force on the test charge is perpendicular to the direction of electric field.
2- At a point that is to the left of a negative charge, what is the direction of the electric field generated by the negative charge?
The electric field points to the left.
The electric field points to the right.
The electric field points upward.
The electric field points downward.
Explanation / Answer
(1)
If the test charge is positive, the electric force on the test charge is along the direction of electric field.
(2) For negative charge, electric field is always towards the charge hence
The electric field points to the right.
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