Which of the following actions would double the magnitude of the magnetic force per unit length between two parallel current-carrying wires? Choose all correct answers
(a) Double one of the currents.
(b) Double the distance between them.
(c) Reduce the distance between them by half.
(d) Double both currents.
1.(a) only
2.(a) and (c)
3.(b) and (d)
4.(c) and (d)
2
You might also like to view...
What are the two largest moons of Neptune and what makes them peculiar objects in our Solar System?
What will be an ideal response?
Liquid metallic hydrogen is found in the interior(s) of
a. Uranus. b. Neptune. c. Uranus and Neptune. d. neither Uranus nor Neptune.
Which of the following explains why the Big Dipper will look different 100,000 years from now than it does today?
A) Earth rotates once each day. B) Earth orbits the Sun once each year. C) The direction of Earth's axis in space precesses with a period of about 26,000 years. D) Stars appear to move randomly relative to our Sun in the local solar neighborhood. E) The universe is expanding.
We see differential rotation at Uranus and Neptune such that the equator is moving slower than higher latitudes
Indicate whether the statement is true or false