# Science

posted by .

Changing the current changes the ___ of an electromagnet.
Choices are:
A. strength
B. direction
C. charge
D. both a and b

• Science -

1) Electromagnet
2) both a and b
3) electrical energy into mechanical energy

## Similar Questions

1. ### Science guys :)

hey guys a got a few problems i need help with im really desperate for help they're due soon online :( 1.Suppose that a constant current of 89 mA flows in a conductor. Find the absolute value of the total charge that passes through …

A +6.00 µC charge is moving with a speed of 7.00 x 10^4 m/s parallel to a very long, straight wire. The wire is 5.00 cm from the charge and carries a current of 63.0 A in a direction opposite to that of the moving charge. Find the …
3. ### science

i need helping answering this homework question on magnetism: which of the following will induce a current in a nearby circuit?
4. ### Physics

Two infinitely long wires are separated by a distance of d = 1.4 meters. Both have current running in the positive y direction. A charge of q = +2.7 micro-Coulombs is moving in the positive y direction at v = 3.1 E 6 m/s a distance …
5. ### physics

A 0.0150-m wire oriented horizontally between the poles of an electromagnet carries a direct current of 9.5 A. The angle between the direction of the current and that of the magnetic field is 25.0° as shown. If the magnetic field …
6. ### physics

What does the concentration of field lines represent?
7. ### physics

What does the concentration of field lines represent?
8. ### Physics

A circular loop is rotated 360° in a magnetic field. Which of the following is true for the induced current produced in the coil?
9. ### Physical Science

Which of these cannot increase the strength of an electromagnet?
10. ### physcial science

A device that changes mechanical energy to electrical energy by rotating a coil of wire through a magnetic field is called a(an) A. transformer. B. generator. C. electromagnet. D. current meter.

More Similar Questions