What statement is true about magnet?
All permanent magnets have atomic magnetic dipoles aligned parallel to each other creating a net magnetic moment to the whole magnet. Unpaired valence electrons in the atoms create the atomic magnetic dipoles. The unpaired valence electron gives a magnetic moment to the atom.
What are 3 characteristics of magnets?
Magnets are useful tools that share common properties. The three properties that all magnets have are that they all attract (or stick to) certain metals, they have north and south poles (ends), and two of the same poles will repel (or push away from) each other, while opposite poles will be attracted to each other.
Which of the following is the true test of magnet?
Attraction is a sure test for magnetism. Q. Repulsion is a true test of magnetism.
What is a magnet fact?
In magnets, molecules are arranged so that their electrons spin in the same direction. This creates a magnet with two poles. The main material that magnets are made from is iron. Magnets produce a magnetic force called a magnetic field.
What is unique about magnets?
A magnet always has north and south poles. Cutting a magnet in half makes two magnets, each with two poles. Hammering a magnet will cause it to loose its magnetic properties. Heating a magnet is another way to take away it’s magnetic properties.
Which of the following is not a true statement for a magnet?
Outside the magnet, magnetic field lines go from south to north pole of the magnet is not the correct statement regarding magnetic field. Explanation: The two magnetic field lines never intersect each other.
Which of the following is true magnetic field exerts force only a moving charge?
Magnetic field exerts force only on a moving charge. Electric field exerts force on both stationary and moving charge. Magnetic field exerts force on charge moving parallel to the direction of the field.
Which of the following is or are correct about magnetism?
Which statement is true about magnetic field strength?
Among all the sentences the correct statement is C) The force can both attract and repel materials. This is because positive repels other positive magnetic fields whereas positive attracts other negative magnetic fields.
Which of the following statement is true about magnetic line of force?
Magnetic lines form a continuous, closed path. They originate from the north pole and ends to the south pole. In the magnetic field line, two lines do not cross each other. They are gathered where the magnetic field is strong, and the magnetic field line is strong near the pole.
Which of the following statement is true about magnetic field lines?
The direction of the magnetic field is tangent to the field line at any point in space. Magnetic field lines are closed curves. Magnetic field lines represent zero field strength if they are parallel and equidistant.
Which of the following is not true about magnetic field line?
Conclusion: Magnetic field lines don’t attract each other. Option 4 is not true regarding magnetic field lines.
Which of the following statement S is are correct about the magnetic lines of force inside a bar magnet?
For that reason, the magnetic lines of forces inside a bar magnet are from south-pole to north-pole of the magnet. Thus, the correct option is (D) Are from south-pole to north-pole of the magnet.
Which of the following statement is true there is no relationship between electricity and magnetism?
There is no relationship between electricity and magnetism. An electrical current produces a magnetic field. A compass is not affected by electricity. A compass is not affected by a magnet.
Which of the following statements is correct magnetic field lines do not form closed loops?
Correct option is (c)The tangent at a point on a magnetic field line represents the direction of the magnetic field at that point.
Which of the following statements about earth’s magnetism is correct *?
The correct answer is the Dynamo effect.
Which of the following is correct about magnetic monopole?
Magnetic monopole have constant value of monopole momentum.
What is meant by magnetic lines of force?
Magnetic Lines of Force is a an imaginary line representing the direction of magnetic field such that the tangent at any point is the direction of the field vector at that point.
Which is true of the Earth magnetic field?
The average magnetic field strength in the Earth’s outer core was measured to be 25 Gauss, 50 times stronger than the magnetic field at the surface. The field is similar to that of a bar magnet. The Earth’s magnetic field is mostly caused by electric currents in the liquid outer core.