To complete this lab go to https://phet.colorado.edu/en/simulation/charges-and-f

Question

To complete this lab go to https://phet.colorado.edu/en/simulation/charges-and-fields and download the simulation (or hit play button). You may need to update java on your computer. Follow all directions and answer all questions below.

Electric field and potential due to single charge.

Once the sim is open, check the grid, show E-field, show numbers, and tape measure in the box to the lower left.

Drag a positive 1 nC charge onto the center of the grid. You will now see electric field lines.

Drag tape measure onto the grid and place the large end on top of the charge.

You will see an x on both ends of the tape measure. You are to place the x that’s next to the box with the yellow dot on the charge. Stretch the tape measure out to one meter directly to the right of the charge.

Drag an E-Field sensor onto the grid and place it on the end of the tape measure. Record the magnitude and angle of the electric field at this location below.

E=_________ =_________

Rotate the tape measure 45 degrees counter clockwise about the charge and place the E-Field sensor at the end of the tape. Repeat for angles of rotation of 90, 135, and 180 degrees. Record the magnitude and angle of the electric field at these locations below starting with the 45 degree values and proceeding in order to 180. Be sure to keep the length of the tape measure at 1m.

E=_________ =_________

E=_________ =_________

E=_________ =_________

E=_________ =_________

Does the magnitude of the electric field change? Why or Why not?

Remove the E-Field Sensor and put the tape measure back at 1 m directly to the right of the charge.

Explanation / Answer

E=6.350 N/C at theta=450

E=9.089 N/C at theta=900

E=6.350 N/C at theta=1350

E=9.089 N/C at theta=1800

Electric field depends on the eletric field lines.there are more electric field line at angle 90and 180 than anle 45 and 135 hence electric field are different.

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