Activity to show magnetic effect
Answers
Explanation:
It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.
Answer:
Activity: To demonstrate the magnetic effect of current
(1) We take a thick, insulated copper wire AB and fix it on a table in such a way that this wire is in the north-south direction. (2) A compass is placed under the wire AB. ... (4) Now close the switch so that an electric current passes through the wire AB.Take a metal wire and pass the current through it. Sprinkle some iron fillings around the wire..you will find that the iron fillings get attracted towards the wire..this is magnetic effect of electric current..
Explanation:
You will need:
1.A battery cell.
2.10cm long insulated wire.
3.Electrical tape.
4.A strong neodymium magnet.
5.Pen and paper to record your observation.
Magnetic Effect
Step1: grab the insulated wire, strip off the insulation around 1cm on each side.
Step2: connect one end of the wire to the positive terminal of the battery, use the electrical tape if necessary.
Step3: place a strong neodymium magnet under the wire, do not connect the wire and note down your observations.
Step4: now connect the free end of the wire to the negative terminal and see what happens, note down your observations.
Step5: now keep the wire as it is and interchange the terminals of the battery, notice what happens. Note down your observations.
Inference: we can see that the wire bends when there is current flowing through it, and when the polarities are inverted the wire bends in the opposite direction.
•A current-carrying wire in a magnetic field experiences a force.
•The magnitude of the force depends on the magnitude of the magnetic field and the current flowing through the conductor.
•The direction of the force also depends on the direction of the current flowing through the conductor.
This is because current flowing through a conductor induces a magnetic field around the conductor, this can be easily understood by the right-hand rule, which states that if you make a thumbs up sign with your right hand then the thumb pointing in the direction of the current and rest of your fingers indicate the direction of the magnetic field.
Magnetic Effect
When you apply current to the conductor it will produce a magnetic effect or field around it, so basically the wire acts like a magnet, and it will interact with the permanent magnet you have placed next to it, this effect can be reversed by changing the direction of the current, which according to the rule changes the direction of magnetic field produced by it.
We know that in magnets like poles repel and unlike poles attract each other, so depending on the direction of the magnetic field induced, the conductor will either get attracted or get repelled by the permanent magnet.