Suppose two charges, one positive and one negative, are separated by a distance d. Where can two equipotential surfaces at different potentials intersect in the region near the charges?
a. halfway between the charges if the charges have the same magnitude
b. closer to the smaller negative charge than the larger positive charge if the charges are not equal
c. Equipotential surfaces at different potentials cannot intersect.
d. closer to the smaller positive charge than the larger negative charge if the charges are not equal
c
You might also like to view...
A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions. As the wave moves, its wavelength:
1.increases. 2.decreases. 3.stays constant.
Four identical particles (mass of each = 0.40 kg) are placed at the vertices of a rectangle (2.5 m × 4.0 m) and held in those positions by four light rods which form the sides of the rectangle. What is the moment of inertia of this rigid body about an axis that passes through the mid-points of the shorter sides and is parallel to the longer sides?
a. 2.2 kg×m2 b. 2.8 kg×m2 c. 2.5 kg×m2 d. 3.1 kg×m2 e. 1.6 kg×m2
_________ occurs when light travels out of a gravitational field, loses energy, and its wavelength grows longer
a. A gravitational blue shift b. The solar wind c. A gravitational redshift d. A X-ray burst e. A pulsar wind
Acceleration: Suppose that an object is moving with a constant velocity. Which statement concerning its acceleration must be correct?
A. The acceleration is constantly increasing. B. The acceleration is constantly decreasing. C. The acceleration is a constant non-zero value. D. The acceleration is equal to zero.