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. 41 X 06 1.0 m 5.0 m 2. Use the field sensor to measure and record the electric field Ex due to q, 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 4, from the grid. 4. Use the field sensor to measure the electric field Ezx due to the positive charge 42 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. Investigation 2: Electric field due to a pair of separated charges. 1. Place the charge q, back on the grid at x=0m and leave charge 42 at x = 1.0 m as shown in diagram below. 42 9 X 0 1.0 m 5.0 m 2. Measure and record the electric field E3x due to this pair of charges along the x-axis from from x = 1.5 m, up to 5.0 m in steps of 0.50 m. Record your readings in Table 2.

Investigation 2 please

Answer 1

Eixt Ex 24 2.25 १ Ezx 24 2.25 -0.32 -0.75 -0.32 Position /EIX CNC) Ex (N/C) 1.5 - 12 36 2.0 - 6.75 2.5 - 4.32 4 3.0 - 3 2.25 3.5 - 2.204 4.0 1.6875 1 4.5 -1.33 0.735 5.0 - 1.08 0.5625 1.44 - 0.75 -0.764 0.6875 - 0.595 -0.764 -0.6875 -0.595 - 0-5175 -0-5175 Aw i Sign changes from the to-ve because effect of we charge will be more as compare to the charges when distance increases. This is due to 1921 1921. Formula Used ²nd Ч10 92 Ausi Ex will lee zero in interval (2.09 2.5 fles is value are some because of suburifosition Brincible. le We can directly superimpose different È fields to Calculate net ² field at any point.