# Electrical lines

*label*Science

*timer*Asked: Jun 21st, 2018

*account_balance_wallet*$20

**Question description**

just follow the attachment, answers can be done on a piece of paper and then submitted as jpg files

thank you and i expect quality work.

this is one part the rest are in the files below:

## Tutor Answer

Hi, here is the completion of your assignment :). Please just message me if you need more assistance :). You can count on me if you have future assignment :)

Electrical lines

Part I: Charge configurations

1. Electric Field

To determine the effect of a charge would be at every point surrounding of it, we need same sort

of reference. That reference is a test charge.

Field map gives the map of electric filed due to a charge. The equation for the force between two

electric charges is:

F =K * Q1 Q2

r2

If we want to work out the effects on any charge, we only have to multiply the vector of the test

charge by the magnitude of the new charge.

If we want to map the field for Q, the we need to know exactly what would hapen if we put Q2 at

every point around Q1. But this obviously on the value of Q2 by convention, we choose

Q2=+1C.

The lecetric filed strength is just the force per unit charge and has the same magnitude and

direction as the force on our test charge.

E =K * Q1

r2

.

. . F =E*Q

2. Positive Charge acting on test charge

As both the charges are postive, they repel each other, we can see that at ever point the positive

test charge would experience a force pushing it away from the carge Q.

3. Negative Charge acting on test charge

The arrows are in the same length because the magnitude of the charge is the same and so is

magnitude of test charge. Thus, the magnitude of the force is the same.

The arrows point in the opposite direction because the charges now have opposite sign and so the

test charge is attracted to the charge.

*Important points to remember about Electronic Point*

•

•

•

There is an Electric Filed at every point in space surrounding charge.

Filed wires are merely a representation

It always start at a right angle...

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