1. What happens to the magnetic
needle above the conductor when
current is flowing from left to
right?
Answers
Answer:
Magnetic Fields If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected. Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing.
Explanation:
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Answer:
When a current carrying conductor passes over a magnetic needle from south to north it deflects towards the west.It is known that the magnetic lines of force around the conductor is circular as according to right hand thumb rule.
Explanation:
If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected.
Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which the current is flowing.
The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow. Below is a sketch of what the magnetic field around a wire looks like when the wire has a current flowing in it. We use B⃗ to denote a magnetic field and arrows on field lines to show the direction of the magnetic field. Note that if there is no current there will be no magnetic field.
The direction of the current in the conductor (wire) is shown by the central arrow. The circles are field lines and they also have a direction indicated by the arrows on the lines. Similar to the situation with electric field lines, the greater the number of lines (or the closer they are together) in an area the stronger the magnetic field.