11. The figure below shows four equipotential surfaces and five prints on these
ID: 1788521 • Letter: 1
Question
11. The figure below shows four equipotential surfaces and five prints on these sontaces Wwich of statements about this figure is true? A. The magnitude of the electric field is greater at point E than at any ol of the other points (A -D) shown. The magnitude of the electric field is greater at point A than at any of the other points (B · B. E) shown. C. The electric field between points C and D has a magnitude of Vin D. The electric field is directed upward from point C to point A. E. The electric field is directed from point A to point 1 2. Two cylindrical wires are made of the same material. Wire 1 ras a radsr nds le 2r and a length of 0.S. Which of the following gives the correct relationshy betiwneen hoin A. R2= 16 R1. he correct relatiowhiy betwsen thein sesioianend C. R1-4 R2. E. R1 R2Explanation / Answer
Answer 11. (A) . The magnitude of electric feild is greater at point E then at any other of the other points (A-D).
Answer 12. (B) R1 = 8R2
we know Resistance R= &L/A
where &= resistivity, L= length , A = Area ( A=pi*r2)
R1/R2 = &L1/pi*r12/&L2/pi*r22
= &l/pi*r2 / &0.5l*4r2
R1/R2 = 8/1
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