10 Questions
What happens to the compass needle when the key is open and the wire is in the S-N direction?
The needle points in the NS direction, parallel to the wire
If the current passing from A to B is increased, what happens to the deflection of the compass needle below the wire?
The deflection increases
What inference can be drawn about producing a magnetic field around a current-carrying wire?
Current produces a magnetic field around it
What happens to the deflection of the compass needle when the direction of the current in the wire is reversed?
The deflection direction is reversed
What is the pattern of magnetic field lines inside a solenoid?
Straight and parallel
What factor influences both the strength and direction of the magnetic field produced by a single straight wire?
Magnitude and direction of current
In the vicinity of wires P and Q, what is the shape of the magnetic field lines?
Nearly circular
What happens to the pattern of magnetic field lines when the direction of current in a loop is reversed?
The polarity of the loop faces reverses
How does an increase in current affect the arrangement of iron fillings around a wire?
Magnetic field lines become denser and the iron fillings get closely spaced
What is the significance of the direction of the North pole of a compass in a magnetic field?
It gives the direction of the magnetic field line at that point
Test your knowledge of Oersted's experiment in electromagnetism. This quiz covers the setup, observations, and outcomes of the experiment with a wire, battery, key, and compass needle.
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