Electric Fields and Electric Field Lines Simulation Lab

Recod the value of the field (E 1 ) in the table below. Move the sensor to the second major intersection and again record the value of the field (E 2 ). Do this for the next 4 major intersection positions (E 3 E 6 ). Electric Field (V/m) E 1 E 2 E 3 E 4 E 5 E 6 Electric Field 36.2 9.48 3.91 2.26 1.49 1.01 Ratio: E n /E 1 1 .26 0.11 0.0625 0.04 0.028 (for the Ratio, calculate E1/E1, E2/E1, E3/E1, E4/E1, /E5/E1, and E6/E1) Take the ratios of the various electric fields to that closest to the charge and record in the table. Expalin why the ratios behave the way the do below. 4. Remove the +1nC charge and the sensor. Place a +1nC charge, centered vertically, at the fourth major grid intersection left from the center. Place a -1nC charge, centered vertically at the fourth major grid intersection right of the center. Center E 3 E 6 E 5 E 4 E 2 E 1 The ratios above behave the way they due as they are based off of the first electric field so the ratio of the following electric fields will be lower due to the first electric field always being higher than the rest.

Question: 2. What is the electric field of a proton at the first Bohr orbit for hydrogen ( r = 5.29 ´ 10 - 11 m)? Also sketch the diagram Question3. Two point charges, q 1 = 2.0 ´ 10 –7 C and q 2 = –6.0 ´ 10 –8 C, are held 25.0 cm apart. What is the electric field at a point 5.0 cm from the negative charge and along the line between the two charges? Summary and conclusions (describe what you learn from animation and basic principles studied in this lab) (8 points) Throughout this lab we looked and learned about the concepts of both the electric field and the electric field lines. Both charges, positive and negative, produce and electric field at every point in space when either or both are present. The electric field lines will begin at a positive charge and will typically end at a negative charge. Therefore, we now know where electric field lines originate from (positive charge and terminate at (negative charge.)