A spherical conductor of radius 2.0 mm carries a charge of 7.1 nC. What is the magnitude of the electrical field at 6.0 mm from the center of the sphere? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 )
A) 89 × 106 N/C
B) 25× 106 N/C
C) 1.8 × 106 N/C
D) 780 × 106 N/C
E) 0.89 × 106 N/C
C
Physics & Space Science
You might also like to view...
The motion of atoms and molecules that most affects temperature is
A) translational. B) rotational. C) vibrational. D) none of the above
Physics & Space Science
While Galileo saw Saturn as a changing oval, the real nature of the rings was discovered by:
A) Halley. B) Newton. C) Lowell. D) Huygens. E) Cassini.
Physics & Space Science
Power: A battery is rated at 12 V and 160 A-h. How much energy does this battery store?
A. 1.9 kJ B. 6.0 kJ C. 1.9 MJ D. 6.9 MJ
Physics & Space Science
What total energy is stored in the group of capacitors shown if the potential difference Vab is equal to 50 V?
a.
48 mJ
b.
27 mJ
c.
37 mJ
d.
19 mJ
e.
10 mJ
Physics & Space Science