Read the following statements and choose the correct option.I. The magnetic field at north pole of a bar magnet is greater than the magnetic field at the south pole of it.II. The magnetic field at south pole of a bar magnet is greater than the magnetic field at North pole of it.III. Inside the bar magnet, magnetic field lines run from its south pole to north pole.A Only I is correct B Only III is correct C Both II and III are correct D Both I and II are correct

The direction of the magnetic field lines outside a bar magnet is:Options:A) From south pole to north poleB) From north pole to south poleC) Circular around the magnetD) From center to the poles

Where is the area of greatest magnetic strength on a bar magnet located?A at both polesB at the north pole, onlyC at the south pole, onlyD at the bottom side of the magnet

What will happen when the north pole of one bar magnet is brought close to the north pole of a second bar magnet?There will be an attractive force between the two north polesThe magnets will accelerate towards one anotherThere will be no force between the two north polesThere will be a repulsive force between the two north poles2A student is experimenting with a bar magnet and a plotting compass.  As she moves the plotting compass around the bar magnet, the needle inside the compass rotates.  Which one of the following statements is correct?The needle always points opposite to the direction of the magnetic fieldThe needle always points directly towards the north pole of the bar magnetThe needle always points directly towards the south pole of the bar magnetThe needle always points in the direction of the magnetic field3Which of the following statements is incorrect?The Earth’s magnetic south pole is in the Southern HemisphereThe magnetic field of the Earth is stronger at the poles than it is at the EquatorThe magnetic field of the Earth (and any magnet) is stronger where the field lines are closer togetherAs long as there aren’t any strong magnets nearby, a compass needle will always point in the direction of the Earth’s magnetic field4Which of the following statements about permanent magnets is incorrect?They produce their own magnetic fields and always have a north pole and a south poleThe force between two permanent magnets will increase when they are brought closer to one anotherThey can be attracted to or repelled by other permanent magnetsUnder certain circumstances, they will only be attracted to other permanent magnets5An iron nail is initially unmagnetised.  Which one of the following things will occur when it is brought closer to the north pole of a permanent bar magnet?Nothing will happen since the iron nail is not a permanent magnetThe iron nail will be repelled by the bar magnetThe iron nail will be permanently magnetisedThe end of the nail which is placed closest to the north pole of the bar magnet will become an induced south pole

Statement-I : The magnetic field lines do not intersect.Statement-II: The direction of magnetic field at a point is unique

Which statement correctly describes how a bar magnet should be placed on a globe to correctly align with Earth's magnetic field?A.Place the magnet vertically on the equator, with the south end facing the North Pole.B.Place the magnet horizontally on the equator, with the south end facing North America.C.Place the magnet vertically on the equator, with the south end facing the the South Pole.D.Place the magnet horizontally on the equator, with the north end facing North America.