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Marizza181 [45]
4 years ago
11

Conductors have ___ resistance.

Physics
1 answer:
vazorg [7]4 years ago
5 0

Answer:

little/no

Explanation:

Conductors are materials, which conduct electricity and/or heat. That means, that their resistance to such energy is so little, that an electric current is able to pass through.

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And electromagnet is in temporary magnet made by Coiling wire around an iron core which becomes a magnet win and electric curren
Bad White [126]

Answer:

We can increase the strength by increasing current in the wire or increasing the number of turns of the coil around an iron core .

Explanation:

The magnetic strength due to current carrying conductor carrying current I and having N number of turns is given by

      B = \mu _{0}\times N\times I

\mu_{O} is vacuum permeability .and its value is equal to 4\pi\times10^{-7} \frac{H}{m}

.so from the above equation we can see that magnetic strength is directly proportional to the current through wire and no. of turns .

3 0
3 years ago
An engine causes a car to move 10 meters with a force of 100 N. The engine produces 10,000 J of energy. What is the efficiency o
gregori [183]

Answer:

10%

Explanation:

Efficiency = work done / energy used

e = (10 m × 100 N) / (10,000 J)

e = 0.1

The efficiency is 0.1, or 10%.

4 0
4 years ago
When you drive through deep water, you should dry out your brakes by _____________. pumping your brakes and driving in low gear
Mandarinka [93]

Answer:

By Applying pressure to the brakes

Explanation:

Driving cars through deep water that is more than 10cm can make the cars to float. Most modern cars are usually water- tight so they can start to float through water that is about 30cm deep, fast moving water is very powerful so one needs to be very careful when driving.

If the brakes are wet test them by pressing or tapping on them gently.

You can as well dry brakes by driving in low gear and applying pressure to the brakes.

7 0
3 years ago
Describe how these amendments and law expanded the political process:
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3 0
3 years ago
Select all that apply. What factors can limit growth?
Rudiy27
A, b and d

Competition for fix resources of course increases the energy expenditure needed to gather those resources and leaves less for a given population. A lower amount of sunlight or water also contributes to decreased energy which lowers growth. Finally, small borders limit growth in that population density can only go so high before the death rate increases beyond the birth rate.
8 0
3 years ago
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