What is declination? Draw a diagram to show the angle between the declination and true direction of geographic north.
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Magnetic declination is the angle of the horizontal plane between the magnetic north and the geographic north (or true north).
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Draw a neat and labelled diagram of an electric bell and describe its working.
The incomplete diagram of an electric bell is given in figure below. Complete the diagram and label its different parts.
Define the term current.
Name four appliances which work using electricity.
