Print Your Full Name An electron is released from rest at a distance of 10.0 C.

Question

Print Your Full Name An electron is released from rest at a distance of 10.0 C. The ion is so massive ita posit ov 9.11 x 10), kg) with charge ge- +32x10 will the electron be moving when it is 2.0 em from the ion? (mt (A) 4.7 m/s (B) 142 m's (C) 201 m's (D) 40,440 m/s (E) 246 m/s A dielectric slab (A) The cap (B) The c Print Your Full Name 8. (F) None of the above 5. A tiny sphere carrying a charge of 6.5 uC sits in an electric field, at a point electric potential is 240 V. What is the sphere's potential energy? the (A) 2.7 x 10 (B) 6.5 x 10 (C) 1.6 x 10J (D) 240J (E) 3.7 x 107J carries a charge of 5 x 10 C and is at a potential of 400 V, relative to the potential far away. The potential at the center of the sphere is: (A) 400 V (B) -400V (C) 2x 10 v (D) 0 V (E) None of the above. 7. A certain wire has resistance R. Another wire, of the same material, has half the length and half the diameter of the first wire. The resistance of the second wire is: (A) R4 (B) R/2 (C) R (D) 2R (E) 4R

Explanation / Answer

5.

Q = charge = 6.5 x 10-6 C

V = electric potential = 240 Volts

electric potential energy is given as

U = QV = ( 6.5 x 10-6) (240) = 0.00156 J

6)

electric potential at the center will be zero

d)

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