Question : The method of magnetisation is:
Option 1: hammering a magnet
Option 2: heating magnet
Option 3: passing direct current through it
Option 4: passing alternating current through it
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Correct Answer: passing direct current through it
Solution : The correct option is passing direct current through it.
The magnetisation of a material can be attained by either exposing it to a magnetic field or passing an electric current through it. This method is often employed to create electromagnets, which allow for control of the magnetic field by adjusting the current flowing through the coil.
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Question : Which of the following is a warm current?
Option 1: Labrador Current
Option 2: Falkland current
Option 3: Canary Current
Option 4: Gulf stream
Question : Which of the following options does not constitute a national income measurement method?
Option 1: Credit method
Option 2: Product method
Option 3: Income method
Option 4: Expenditure method
Question : The GDP estimation method measuring the aggregate value of factor payments is called ______.
Option 1: product method
Option 2: Value added method
Option 3: expenditure method
Option 4: income method
Question : The characteristic invalid for heat radiation is that it travels
Option 1: in a straight line
Option 2: in all directions
Option 3: with the speed of light
Option 4: heating the medium through which it passes
Question : The product method used to calculate the annual value of goods and services produced is also called___________.
Option 1: value added method
Option 2: income method
Option 4: depreciation method
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