<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.
Answer: The correct answer is "magnetic field".
Explanation:
A magnetic field is produced around the current carrying wire.
If you bring compass needle around the current carrying wire then it shows the deflection which indicates that there is a magnetic field around the current carrying wire.
Magnetic fields are the area around the surrounding of magnet in which magnetic force can be experienced.
Therefore, a magnetic field is produced around a wire when an electrical current is in the wire.
Let be the distance between the two houses. Considering the formula
where is the distance, is the velocity and is the time, we can solve it for the time to get
So, the two trips take the following time:
To get the average speed, we need to consider the two trips together. Globally, the person traveled a distance of , and the global time is the sum of the two times. We have
Answer:
The net magnetic flux through the rest of Earth's surface is
Explanation:
Given that,
Magnetic field = 42 μT
Area
We need to calculate the flux per unit area
We need to calculate the total earth's surface area
We need to calculate the rest of earth's area
Put the value into the formula
We need to calculate the net magnetic flux through the rest of Earth's surface
Hence, The net magnetic flux through the rest of Earth's surface is
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