(1) electric field strength E =k•q/r²
If r1 =r/2,
then E1 =4•E.
(2)
F =q•E
(3)
1/R =1/R1 +1/R2 + 1/R3.
R =R1•R2•R3/(R2•R3 + R1•R3 + R1•R2)
U =I1•R1,
I1 =U/R1
1. what happens to the field strength when you halve the distance between two charges?
2. A positive charge of 3.5 uC is located in an electric field of intensity 3.00 N/C directed toward the south. Find the magnitude and the direction of the force on the test charge.
3. Three resistors of 10.0 ohms, 20.0 ohms, and 25.0 ohms are connected in patallel across a 100-V battery. What is the equivalent resistance of the circuit and the current flowing through the 10.0-ohm resistor?
2 answers
thanks so much!
2 answers