Answer:
the emf will be
Explanation:
We have given radius of the coil r = 3.6 cm = 0.036 m
So area
Number of turns N = 600
Emf is given by
So the emf will be
Charge = (current) x (time)
Charge = (0.4 Ampere) x (2 seconds)
Charge = (0.4 Coulomb/second) x (2 seconds)
<em>Charge = 0.8 Coulombs</em>
<h3><u>Answer;</u></h3>
1st drop; Motor
2nd drop; Electricity
A device that uses electricity and magnetism to create motion is called a <u>motor</u>. In a reverse process, a device that uses motion and magnesium can be used to create <u>electricity</u>.
<h3><u>Explanation</u>;</h3>
- <em><u>Motors are device which use electricity and magnetism to create motion.</u></em> They pass alternating current through opposing pairs of magnets to create a rotating magnetic field which creates a magnetic field in the rotor of a motor, making it to spin around.
- <em><u>Electric motors work in a reverse process by using motion and magnetism to generate electricity. </u></em>When a coil or loops of wire are exposed to a changing magnetic field, an electrical current arises or is induced.