Two parallel wires carry the a current I in the same direction. Midway between these wires is a third wire, also parallel to the other two, which carries a current 0.5 I, but in the direction opposite from the first two wires. In which direction are the net forces on the outer wires?
a. Both forces are toward the center wire.
b. Since the net forces are zero, there is no direction.
c. Both forces are away from the center wire.
d. Both forces on the two wires are in the same direction in space.
Question 2
Spherical particles of density 3.0 g/cm3 are shaken in a container of water (viscosity = 1.0 10-3 Ns/m3). The water is 8.0 cm deep and is allowed to stand for 30 minutes. What is the radius of the largest particles still in suspension at that time?
a. 4.5 10-6 m
c. 2.6 10-6 m
b. 9.0 10-6 m
d. 5.6 10-6 m
Lithotripsy. The direction of a sound pulse crushes the stones into smaller fragments that can be pa
Current FDA Pregnancy Category Ratings with Examples
To reverse the direction of operation, the polarity of the current through the motor is reversed.
A current model for protein secretion by prokaryotes
Food that may carry pathogens that should be avoided by pregnant women
A rigid circular loop has a radius of 0.20 m and is in the xy-plane. A clockwise current I is ...