Answer the following questions regarding earth’s magnetism: f you made a map of magnetic field lines at Melbourne In Australia, would the lines seem to go Into the ground or come out of the ground?

Answer the following questions regarding earth’s magnetism: In which direction would a compass free point to, If located right on the geographic north or south pole?

Answer the following questions regarding earth’s magnetism:Geologists claim that besides the main magnetic N-S poles, there are several local poles on the earth’s surface oriented In different directions. How Is such a thing possible at all?

Answer the following questions regarding earth’s magnetism:The angle of dip at a location In southern India Is about 18^@ . Would you expect a greater or smaller dip angle In Britain?

Answer the following questions regarding earth’s magnetism:A vector needs three quantities for Its specification. Name the three Independent quantities conventionally used to specify the earth’s magnetic field.

Answer the following questions: A charged particle enters an environment of a strong and non-uniform magnetic field varying from point to point both in magnitude and direction, and comes out of it following a complicated trajectory. Would its final speed equal the initial speed if it suffered no collisions with the environment?

Answer the following questions regarding earth’s magnetism:The earth’s field, It Is claimed, roughly approximates the field due to a dipole of magnetic moment 8 xx 10^22 J "T1 located at Its centre. Check the order of magnitude of this number In some way.

Answer the following questions: The earth’s magnetic field varies from point to point in space. Does it also change with time? If so, on what time scale does it change appreciably?

Answer the following questions:The earth’s core Is known to contain Iron. Yet geologists do not regard this as a source of the earth’s magnetism. Why?

Answer the following question in one word- Fish plates used in railway lines are made up of a special alloy. Can you tell the name of that alloy?

Direction. In the following questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if assertion is true, but reason if false, (D) if both assertion and reason are false Assertion : When a coil is moved out of a magnet field acting normally to its plane, induced e.m.f. is produced in it. Reason : The induced e.m.f. is produced in a coil. When it is placed inside the magnetic field