1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksandr82 [10.1K]
3 years ago
10

What is the difference between a permanent magnet and a temporary magnet

Physics
2 answers:
Flura [38]3 years ago
7 0
A permanent magnet does not loose its magnetism easily. It can only be lost by permanent destruction say by fire. Example of this is magnetism from a bar magnet. This magnetism is not induced by say electric current.

A temporary magnet looses its magnetism easily. The magnetism is gained or loosed for the action of carrying out a particular task. This magnetism can be achieved by the gain or loss by passing of electric current over say an iron core.    
lara31 [8.8K]3 years ago
4 0
Pernament magnet is one that retains its magnetic properties for a long period of time. Temporary megnet only maintains its magnetism while in a magnetic field produced by permanent magnet or electric current.
You might be interested in
1.How is the law of conservation of energy demonstrated by the movement of the pendulum?
Snezhnost [94]
1. Law of conservation of energy states that energy cannot be created, nor destroyed, for example, windmills take kinetic energy(movement energy) and convert it into electrical energy using gears and a generator as well as the blades.

so this supports it because the pendulum never reaches the same height twice unless you reset it so the energy is always getting less and less and not randomly getting back onto the pendulum.

2.Gravity, friction and air resistance slow it down as well

3. at the top, potential energy is the amount of energy something has relative to the amount it can disperse before stopping, for example, a book on a shelf has more potential energy than that of a book on a table, this is because when the shelf book falls it will create more energy than the table book.

6 0
3 years ago
To make the next delivery, Sam-I-Am goes 45 mi/h for 2 hours. How far did he travel in that time?
andrezito [222]

Hello =D

This problem is about cinematic

So

V = 45 mi/h

t = 2 h

Then

V= X/t

X = V*t

Then

X = (45)*(2)

X = 90 mi

Best regards

5 0
3 years ago
Are individual organelles (cell structures) living? Explain
Julli [10]
All cells are living however organelles are not living there are no organisms that consist of just a single cell
3 0
4 years ago
Read 2 more answers
Crude oil is a mixture of many different components. The extraction of crude oil from the Earth is important, but its refinement
Neporo4naja [7]

Answer: Different fuel components boil at different temperatures, allowing them to be separated.

Explanation:

3 0
3 years ago
What is the answer to this question?
dem82 [27]
Acceleration is a change in *speed* over time. In this case, the speed of the car increased by 90 km/hr in 6 s, giving it a rate of 90 km/hr/6s, or 15 km/hr/s. We’re asked for the acceleration in m/s^2, though, so we’ll need to do a few conversions to get our units straight.

There are 1000 m in 1 km, 60 min, or 60 * 60 = 3600 s in 1 hr, so we can change our rate to:

(15 x 1000)m/3600s/s, or (15 x 1000)m/3600 s^2

We can reduce this to:

(15 x 10)m/36 s^2 = 150 m/36 s^2

Which, dividing numerator and denominator by 36, gets us a final answer of roughly 4.17 m/s^2
3 0
3 years ago
Other questions:
  • Why is the gravitational potential energy of an object 1 meter above the moons surface less than its potential energy 1meter abo
    9·1 answer
  • Determine the boundary work done by a gas during an expansion process if the pressure and volume values at various states are me
    7·1 answer
  • A straight line can represent a _____-dimensional coordinate system.
    14·1 answer
  • A rock is dropped from a third story window to the ground below. Assuming air resistance can be ignored, as it falls: a) only it
    10·1 answer
  • What must be true about two objects if heat is flowing between them? the objects must be different temperatures. the objects mus
    15·2 answers
  • What's the difference in a balanced force in an unbalanced force
    6·1 answer
  • In an undeveloped country, the rural areas will often be off the grid, with no access to consistent electricity. For a household
    12·1 answer
  • A stubborn, 120 kg mule sits down and refuses to move. To drag the mule to the barn, the exasperated farmer ties a rope around t
    11·1 answer
  • 100 POINTS.
    15·1 answer
  • A 200 g mass is placed on the meter stick 20 cm from the fulcrum. An
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!