Answer the following questions about the properties of...

Answer the following questions about the properties of electric field lines. a. At what two types of locations can electric field lines start? b. Where can they end? c. When looking at an electric field line representation of an electric field, how can you tell from the electric field lines where the electric field is strong and where it is weak? C x E x D x-1 -1 B xA x d. If the number of electric field lines entering or leaving a charge doubles, what does that tell you about the magnitude of the charge? i. It became half as much. ii. It doubled. iii. ....you can’t tell anything about the magnitude of a charge by the number of lines entering/leaving.

Transcript

00:01 In this following question it is said that three point charges a b and c are equally spaced along a line electric field lines around the charges are thrown at right one field line has an arrow on it to represent the direction of the fourth accepted on a positive taste charge at any point on that line we have to draw the appropriate arrows on each of the other lines so from this arrow it is clear that the point charge a is positive then the electric field lines is in outward direction for the positive charges.

00:37 So the field will be like this.

00:44 And from this arrow it is clear that this electric field line is going to sink at the point c, which means that c is a negative point.

00:53 So all the arrows will be sink toward the point c.

01:04 So b is also a positive charge and c is negatively charged.

01:10 Now in the part b, it is said that what to do the field line suggest about the approximate relative magnitude of the three charges.

01:19 Include information about the relative signs of the charges in your answer.

01:24 So here, the electric field is repealed by charge a and b, and the electric field for positive charge, will always moving away from the charge as seen in the figure.

02:13 And it is shown that arrow for the charged particle a.

02:18 So point a is positive charge and fill lines for a and b are retail.

02:22 So point b must be the same nature of a.

02:24 It means that charge b must be positive.

02:27 And the fill lines coming towards the c, so fill line always comes out from the positive charge and converses into the negative charge...

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