Physics 1512: General Physics I Problem Set 02 5. A Positive and Negative Test.
ID: 1396100 • Letter: P
Question
Physics 1512: General Physics I Problem Set 02 5. A Positive and Negative Test. In the figure below are shown four situations which charges have been placed. Each of the positive and negative charges has the same magnitude. The positive and negative charges are fixed in their position. Each situation independent and you do not need to be concerned about any charges that might be is outside the boxes. D positive charge negative charge test charge site a. If in each situation, we put a small positive test charge, a, at the indicated positions. Rank the magnitude of the force that the test charge would feel. Use a ranking such as E> F G >H 0, that is, only use greater than signs, indicate if any two situations produce equal forces, and indicate if any of the forces are zero. b. Instead of using a positive test charge, we use a negative test charge of the same magnitude. How (if at all) would the forces felt by the test charge in the four situations change? c. Instead of using our original positive test charge, q, we use a smaller negative test charge, -q/2. How would the electric force felt by this test charge differ from that felt by the original test charge? d. How would the electric field measured by this test charge differ from the one measured by our original test charge?Explanation / Answer
a) B > A > C > D
b) magnitude of forces ramains same. But directions change.
c) it becmes half
d) there will not be any difference.