A simple circuit consists of a battery, wire, bulb, and switch. When the switch is on, a small magnetic compass is placed near the circuit and shows a slight deflection to the west. What causes the deflection? The compass is responding to the current because it was made of copper. The current moving through the circuits causes a local magnetic field. The electricity from the wire was arcing to the compass needle. The charges in the compass's needle is flowing with current in the wire.
Question
A simple circuit consists of a battery, wire, bulb, and switch. When the switch is on, a small magnetic compass is placed near the circuit and shows a slight deflection to the west. What causes the deflection? The compass is responding to the current because it was made of copper. The current moving through the circuits causes a local magnetic field. The electricity from the wire was arcing to the compass needle. The charges in the compass's needle is flowing with current in the wire.
Solution
The deflection of the compass needle when placed near the circuit is caused by the magnetic field generated by the electric current flowing through the circuit. This is based on the principle of electromagnetism, where a moving electric charge creates a magnetic field. The compass needle, which is a small magnet, aligns itself with this magnetic field, causing it to deflect.
The material of the compass or the wire (in this case, copper) does not directly cause the deflection. However, different materials can affect the strength of the magnetic field and thus the degree of deflection.
The electricity from the wire is not "arcing" to the compass needle. Arcing is a phenomenon where electricity jumps from one point to another through the air, which is not what's happening here.
Lastly, the charges in the compass needle are not flowing with the current in the wire. The needle is responding to the magnetic field created by the current, not directly interacting with the current itself.
Similar Questions
Rohit made a circuit as shown in the figure. He observed that the bulb does not glow, but onbringing a compass needle near, it showed deflection. He was quite confused that if currentis flowing through the circuit then why the bulb is not glowing. Meanwhile his friendSaurav arrived and suggested that he should add one more cell in the circuit. When headded one more cell, the bulb started glowing.(a) What does the deflection of a compass needle show?(b) Explain why did the bulb not glow in the first case but it started glowing in the secondcase.(c) Suggest two liquids which Rohit might have used as electrolyte in the above experime
In your own words, explain why the moving compass needle proved there was a magnetic field around the electric current.
A compass needle is a small magnet on a pivot. The needle can swing around freely.Explain why one end of the needle points north.
A student is playing with a magnetic compass near a bar magnet. At a range of 10 cm, they notice that the compass needle is pulled slightly towards the magnet. What would they see if the compass was moved to 8 cm? The needle would not move from its original deflection. The needle would be pushed in the opposite direction. The needle would be pulled more towards the magnet. The needle would return closer to its normal position.
A student staying in a coastal area tests the drinking water tests the drinking water and thesea water with a circuit in which a part of the connecting wire is wound around a matchboxcontaining compass.(a) In which of the above case will the compass needle show more deflection?(b) Give suitable reason for your answer.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.