Please help me out.... I tried many time... Beginning Observations 1) Open the C

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Please help me out.... I tried many time...

Beginning Observations

1) Open the Charges and Fields PhET simulation (HTML 5 verson). What can you change about the simulation?

2) What do the “E-field sensors” show?

3) Select, show E-field. How does the color of the arrow relate to the strength of the field?

4) How can you make a charge of +2q? -3q?

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Question: Please help me!!! AP Physics – Charges and Fields PhET Lab Today, you will use the Charges and ...

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AP Physics – Charges and Fields PhET Lab

Today, you will use the Charges and Fields PhET lab to map the electric field around one or more point charges.

Beginning Observations

1) Open the Charges and Fields PhET simulation (HTML 5 verson). What can you change about the simulation?

2) What do the “E-field sensors” show?

3) Select, show E-field. How does the color of the arrow relate to the strength of the field?

4) How can you make a charge of +2q? -3q?

Part 1 – Field around isolated point charges

5) Draw the field lines for the scenarios below. Make sure you are sketching continuous field lines.

4q

-2q

Part 2 – Field around two point charges in a line

6) Draw the field lines for the scenarios below. Make sure you are sketching continuous field lines.

Two unequal, unlike point charges

Two equal point charges

Place a test e-field sensor anywhere on the screen for both scenarios and draw what you see.

7) When you have two like charges in a line – where is the electric field the greatest? Is there ever a point where the field will be zero?

8) When you have two unlike charges in a line – where is the electric field the greatest? Is there ever a point where the field will be zero?

4q

-2q

Explanation / Answer

1) The following things can be changed

a) Charges which can be placed

b) Information which will be displayed such as electric field direction, voltage values.

2) E field sensorsshow the direction and magnitude of Electric field at a point

3) Electric field's colour becomes more white in the region where the electric field is stronger.

4) Charges of -2q and 3q can be constructed by overlapping unit charges on top of one another.

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