A meter is connected to a coil of wire - Edexcel - GCSE Physics - Question 2 - 2017 - Paper 1
Question 2
A meter is connected to a coil of wire.
When the south pole of a magnet moves into the top of the coil, the meter looks like this.
(a) Draw a line from each ‘movem... show full transcript
Worked Solution & Example Answer:A meter is connected to a coil of wire - Edexcel - GCSE Physics - Question 2 - 2017 - Paper 1
Step 1
The north pole of the magnet goes into the top of the coil faster than before.
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Answer
This movement will cause the meter to deflect upwards, indicating a positive reading. This is due to the direction of the induced current, which will be in the opposite direction to the field when the north pole enters.
Step 2
The south pole of the magnet comes out of the top of the coil faster than before.
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Answer
As the south pole exits the coil, the meter will show a downward deflection. This indicates a negative reading, as the induced current flows in the opposite direction when the south pole leaves.
