1c. Measuring electric field strength:\ v. Using E-field sensor, measure the electric field strength of a

1nC

positive charge: (a)\ at

0.87m

.\

(V)/(m)

\ (b) at

1.5m

\

(V)/(m)

\ vi. Using the E-field sensor, measure the electric field strength of a

1nC

positive charge at a distance of

1m

.\ Add another

1nC

positive charge right on top of the first. What is the electric field strength now at

1m

?\ Add two more charges (for a total of

4nC

) and measure the field strength at

1m

? How is the field\ strength changing? (e.g. becomes half, or doubles, triples...etc.)\ charge

1c. Measuring electric field strength: v. Using E-field sensor, measure the electric field strength of a 1nC positive charge: (a) at 0.87m V/m (b) at 1.5m V/m vi. Using the E-field sensor, measure the electric field strength of a 1nC positive charge at a distance of 1m. Add another 1nC positive charge right on top of the first. What is the electric field strength now at 1m ? Add two more charges (for a total of 4nC ) and measure the field strength at 1m ? How is the field strength changing? (e.g. becomes half, or doubles, triples...etc.) E(1nC charge )= E(2nC charge )= E(4nC charge )= The field strength changes as 2a. Measuring electric potential vii. Using plotter create three equipotential lines around a 1nC positive charge at 0.5m,1m, and 1.5m. what are the voltmeter readings? V( at 0.5m)=V( at 1.0m)= V( at 1.5m)= From the above data, what relation do you observe between voltage and distance? 2b. Show that V/m=N/C : (show your work)