I need help confirming my answers:
1) The work done on an electric charge equals
a) IR
b)q/t
c)Vq
d) It
I think it's C.(Vq)
2) The direction of an electric field is the direction that a ___ test charge will move when placed in the field.
a)negative
b) positive
c) neutral
I think the answer is B. (positive)
Can anyone help me to say if I am right? or do I need to keep looking?
To confirm your answers, let's go through each question and explanation:
1) The work done on an electric charge equals:
a) IR
b) q/t
c) Vq
d) It
To identify the correct answer, we need to understand the concept of work done on an electric charge. Work is defined as the transfer of energy resulting from the application of a force over a distance. In the case of an electric charge, the work done is given by the equation W = qV, where q is the charge and V is the voltage.
Looking at the answer options:
a) IR represents current multiplied by resistance, which does not correspond to work on a charge.
b) q/t represents charge divided by time, which is more related to current (I).
c) Vq corresponds to voltage multiplied by charge, which matches the definition of work done on a charge.
d) It stands for current multiplied by time, which does not directly relate to work on a charge.
Based on the explanation, your answer of C. (Vq) is correct.
2) The direction of an electric field is the direction that a ___ test charge will move when placed in the field.
a) negative
b) positive
c) neutral
To determine the correct answer, we need to consider the behavior of charges in an electric field. Electric field lines point in the direction that a positive (+) test charge would move when placed in the field.
Reviewing the options:
a) A negative charge would move in the opposite direction of the electric field lines.
b) A positive charge would move in the same direction as the electric field lines.
c) A neutral charge would not experience a force in the electric field.
Based on the explanation, your answer of B. (positive) is correct.
Therefore, based on the explanations provided, your answers are correct: C. (Vq) for question 1 and B. (positive) for question 2. Well done!