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Delicious77 [7]
3 years ago
8

What Are 2 Properties electromagnets have that permanent magnets do not?

Engineering
2 answers:
Semenov [28]3 years ago
5 0
Permanent have magnetic in them and electromagnet is made of coil wires which acts like a magnet when an electric current pass through
NikAS [45]3 years ago
4 0

Answer:The distinction between a permanent magnet and an electromagnet is essentially one in how the field is created, not the properties of the field afterwards. So electromagnets still have two poles, still attract ferromagnetic materials, and still have poles that repel other like poles and attract unlike poles.

Explanation:

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zysi [14]

Answer:

The part of the system that is considered the resistance force is;

B

Explanation:

The simple machine is a system of pulley  that has two pulleys

The effort, which is the input force at A gives the value of the tension at C and  D which are used to lift the load B

Therefore, we have;

A = C = D

B = C + D = C + C = 2·C

∴ C = B/2

We have;

C = B/2 = A

Therefore, with the pulley only a force, A equivalent to half the weight, B, of the load is required to lift the load, B

The resistance force is the constant force in the system that that requires an input force to overcome in order for work to be done

It is the force acting to oppose the sum of the other forces system, such as a force acting in opposition to an input force

Therefore, the resistance force is the load force, B, for which the input force, A, is required in order for the load to be lifted.

3 0
3 years ago
The practice of honoring those who have been lost in battle dates back to which two ancient
Serjik [45]
It was between Iranians and filapinons nice work man it’s easy
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3 years ago
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2. What is the main job of a cylinder head?
Anna11 [10]

Answer:

Explanation:

The cylinder head sits on the engine and closes off the combustion chamber. The gap that remains between the cylinder head and the engine is completed by the head gasket. Another task of the cylinder head is to ensure the constant lubrication of the cylinder        

3 0
3 years ago
I don't know help me​
sergey [27]

Answer:

for...?

thenks for the points :))

4 0
4 years ago
The benefit of using the generalized enthalpy departure chart prepared by using PR and TR as the parameters instead of P and T i
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