A student has the following equipment - copper wire, nail made of iron,a battery, paperclips.How can he make an electromagnet and use it to separate a mixture of small pieces of copper and iron?

please help

Answers

Answer 1

Answer: Taking the copper wire, he has to wind it around the nail made of iron. After which, he then connect both ends of the copper wire to the battery, so an electric charge travels through the wire. This is the basic electromagnet. Since a current is now flowing through the wire, a magnetic field is produced. Placing the electromagnet near the mixture of copper and iron, the magnet should attract the pieces of iron, as iron is more magnetic compared to copper. This is done over a period of time, so that only the copper pieces are left in the mixture.

Related Questions

A 2,100 kg car is lifted by a pulley. If the cable breaks at 4.50 m, what is the velocity of the car when it hits the ground
What are examples or centripetal acceleration?
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.13 s. What are the (a) period and (b) frequency? (c) The wavelength is 1.9 m; what is the wave speed?
A pendulum takes 10 seconds to swing through 2 complete cycles.a. How long does it take to complete one cycle? b. What is its period? c. What is its frequency?
The earth system concept emphasizes which of the following? Question 2 options: how everything on the earth is interconnected how you can study each system in isolation the concept that the earth is round how the earth's systems came about

What 2 characteristics of stars are shown in an H-R diagram?

Answers

2 characteristics of stars are shown in an H-R diagram is Size and Color.

A planet moves fastest when it is ___________________ to the Sun and slowest when it is ___________________ from the Sun. Choose one: A. farthest; closest B. at the nearest focus; at the farthest focus C. closest; farthest

Answers

Answer:

option (c) is correct

Explanation:

A planet moves fastest when it is closest to the Sun and slowest when it is farthest from the Sun.

Answer:

fastest when closest to the Sun, slowest when it is farthest

Explanation:

Plato/Edmentum

The jovian planets contain a large percentage of the gases

Answers

The Jovian planets contain large percentage of Gases its because they are formed outside of what they called as frost line where temperature is low enough for ice condensation unlike terrestrial planets formed close to the sun where the temperature is very appropriate for metal and rock to condense.

The Jovian planets contain a large percentage of the gases Hydrogen and Helium.

Which change increases the electric force between objects? A) Two neutral objects are moved closer together.
B) Electrons are added to two negatively charged objects.
C) Two oppositely charged objects are moved farther apart.
D) The charge on two positively charged objects is reduced.

Answers

By definition we have that the electric force is given by:

Where,

k: proportionality constant

q1: electric charge of object 1

q2: electric charge of object 2

d: distance between both objects

Therefore, to increase the electric power there are two possible cases:

1) Add more load to each object

2) Decrease the distance between objects.

The option that increases the electric force for this case is:

Electrons are added to two negatively charged objects.

This is because the values of q1 and q2 increase.

Answer:

A change that increases the electric force between objects is:

B) Electrons are added to two negatively charged objects.

Answer

B) Electrons are added to two negatively charged objects.

Explanation:

i took the test

Light is traveling through the different media shown. In which medium does light travel fastest?

Answers

Light travelling in a vacuum is the fastest thing in the universe. The speed would be 2.99x10^8 m/s. The answer to this question is 'vacuum', where light can travel the fastest. I hope this helps you. You're welcome!

Answer:

Aluminium or Iron or any metal really

Explanation:

I did Gradpoint :)

a transformer with a turns ratio (secondary/primary) of 1:10 is used to step down the voltage from a 120-v wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger?

Answers

The voltage ratio of a transformer is nominally equal to the turns ratio.

If you connect 120 volts AC to one side of the 1:10 transformer, you'll
get 12 volts out of the other side if you connected it up the correct way,
or 1200 volts if you connected things up backwards.

Note that it has to be AC. If the input to a transformer is DC, then the
output is always smoke.

Answer:

the answer on edge is 48

Explanation:

Other Questions

Bob weighs 80 pounds. He ran up the steps which rose 14 feet. Fred weighs 110 pounds. He ran up the same steps as Bob. If both boys reached the top of the 14-foot stairs at the same time, which boy had the greatest horsepower?

An electric dryer consumes 6.0 × 10^6 joules ofelectrical energy when operating at 220 volts for1.8 × 103 seconds. During operation, the dryerdraws a current of(1) 10. A (3) 9.0 × 102 A(2) 15 A (4) 3.3 × 103 A

A car that travels from point A to point B in four hours, and then from point B back to point A in six hours. The road between point A and point B is perfectly straight, and the distance between the two points is 240 km. What is the car’s average velocity?

Which is caused when constructive interference occurs in sound waves?a. louder beatsb. no disturbancec. softer noisesd. no sounds