The diagram shows the electric field lines around two charges. Based on the field lines, what is the best description of the cha
rges ?
A.) they are negative, and they repel
B.) the left is negative and the right is positive, so they attract.
C.) the left is positive and the right is negative, so they attract.
D.) they are positive, they repel
A.) they are negative, and they repel
B.) the left is negative and the right is positive, so they attract.
C.) the left is positive and the right is negative, so they attract.
D.) they are positive, they repel
2 answers:
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Answer:
Explanation:
Electric field due to a point charge Q at a point at distance d is given by the relation
E =
Since Q1 and Q2 are of the same magnitude and distance , so they will create eletric field of same magnitude. Similarly field due to rest of the charges will also be same.
The charges are situated on the corners of a square in such a way that
equal charges of Q1 and Q3 are situated on the diametrically opposite corners of the square. Fields due to these two charges will be equal and opposite in direction. Therefore net field due to these two charges will be zero.
On the same ground, we can say that field due to Q2 and Q4 at the centre will be equal and opposite and therefore they will cancel out each other. Net field at the centre will be zero
Overall, net field due to all the four charges will be zero
Explanation:
Formula to represent thrust is as follows.
F =
=
or, p =
F =
=
= 201.67 N
Thus, we can conclude that the thrust is 201.67 N.