Question

Two 10-cm-diameter charged rings face each other, 25.0cm apart. Both rings are charged to +20.0nC. What is the electric field strength at:a) the midpoint between the two rings?b) the center of the left ring?

Answer 1

Answer:

a)The electric field at the mid-point is 0 N/C

b)The electric field at the center of the left ring is 2715.454 N/C

Explanation:

The explanation for this answers above is shown on the first,second,third,fourth,fifth image

Answer 2

Answer:

1. Electric field strength mid point is 0 N/C.

2. Electric field strength at the center of the left ring is 5420 N/C

Explanation:

D of Ring = 10cm =0.1 Meter

Charge on each Ring = Q1=Q2=40*10-9 C

Radius = D/2 = .1/2= 0.05m.

E= 1/(4piε) * (xQ/(x2+r2)^3/2)

Distance from the left ring t the mid point is x = 0.25/2 =0.125

1/4piε=8.99x10^9

E=1.8x10^4 N/C

Emid=Eleft-Eright

as Eleft=Eright

Emid=0 N/C

for Ecenter of Ring

x=0.25m

E=5.42x10^3 N/C