Question

Exploring the electric field of point charges Use PHET interactive CHARGES AND FIELDS. Investigation 1: Electric field due to single charges 1. Use 3 negative -1 nC charges on top of each other to make a point charge 41 = -3.0 nc on the left(ish) side of the grid, and note this point as the origin. 91 X 0 1.0 m 5.0 m 2. Use the field sensor to measure and record the electric field Eix due to 4 from x = 1.0 m in 0.50 m intervals up to x = 5.0 m. Record your readings in Table 1. Take the direction to the right as positive. 3. Now place a single positive charge 42 = +1.0 nC on position x = 1.0 m, and clear the negative charges making up 9 from the grid. 4. Use the field sensor to measure the electric field Ezx due to the positive charge 92 starting at x = 1.5 m (0.5 m to the right of the positive charge) up to x=5.0 m in steps of 0.5 m. Record your readings in Table 1.

Just investigation 1

Answer 1

2.0 १ 4 Position EiX (N/C) Ex (N/C) 1.5 -12 36 -6.75 2.5 -4.32 3.0 -3 2:25 3.5 -2.204 4.0 11.6875 1 -1.33 0.735 5.0 -1.08 0.5625 1.44 ५.5

E vsr 12 Sett 9.8 7,6 ܚܢܐ 5.4 3.3 ooo 1.1 1.5 2.2 29 3.6
We see that as distance increases Electric field decreases.

E vs 1/r^2 Set I fitted curve: y=a+bx 12 a: 0.002266 b=27.01743 9. P 7.6 ♡ E 5.4 3. 1.1 0.04 0.121 0.202 0.282 0.363 0.444 1/r^2
graph is straight line because slope is constant and slope is equal to q /4$\prod \epsilon$= -27