## Question

In the report you're about to write, do the following:
Verify:
• The vector nature of magnetic fields;
• That the field at the center of a current loop is normal to the loop and directed in accordance with right hand rule;
Investigate the relationship between the magnetic field and:
• The number of turns - B(N);
• The value of the current - B(I) inside a current carrying coil.
Determine the strength of the horizontal component of the Earth’s magnetic field.

## Solution Preview

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Experiment part one was done to verify the vector nature of magnetic fields and that the field at the center of a current loop is normal to the loop and directed in accordance with right hand rule. So There were two possibilities for the B net ,which was east of North and west of north , but when switch on the circuit compass always points in the direction of east of north, so B net should be direction of east of north.
Right hand expressed when right hand wrapped around the magnetic core of a coil in the direction of current, the thumb will point in the direction the magnetic field lines pass through the coil. So when thumb pointed to the direction of current, wrapped fingers shows the direction of conventional magnetic field lines. Considering this to fig 1.1, wrapped fingers toward the Bloop,then goes in to the screen from 00 and come out from 1800, so current flow in to the screen at 1800 and out...

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