Consider two long, straight parallel wires, each carrying a current I. If the currents are flowing in the same direction:
a. the two wires will attract each other.
b. the two wires will repel each other.
c. neither wire will exert a force on the other.
d. the two wires will exert a torque on each other.
A
You might also like to view...
Determine a relationship for the volume element in spherical coordinates.
What will be an ideal response?
When a cell divides, only one cell gets the original DNA molecules
a. True b. False Indicate whether the statement is true or false
The hot spots in a double-lobed radio source
a. appear to coincide with the location of the central galaxy responsible for the jets. b. are where hot excited gas interacts with the intergalactic medium. c. are only found near quasars. d. produce enough visible energy to be imaged at visible wavelengths. e. are always perpendicular to each other.
Grass appears green because
A) it emits green light and absorbs other colors. B) it absorbs green light and emits other colors. C) it transmits green light and emits other colors. D) it reflects green light and absorbs other colors.