How does the magnetic field strength change with distance from the conductor?
The magnetic field strength decreases as the distance from the conductor increases. The field is strongest near the conductor and becomes weaker as you move farther away.
What is the shape of the magnetic field lines around a current-carrying conductor?
The magnetic field lines around a straight current-carrying conductor form concentric circles around the wire. The direction of the magnetic field can be determined using the right-hand thumb rule.
What is the direction of magnetic field lines around a bar magnet?
Around a bar magnet, magnetic field lines emerge from the north pole, curve around the magnet, and enter the south pole. Inside the magnet, the lines continue from the south pole to the north pole, forming closed loops.
How can you visualize magnetic field lines?
You can visualize magnetic field lines by sprinkling iron filings around a magnet or by using a small compass. The iron filings align themselves along the magnetic field lines, forming a pattern that reveals the field's shape and direction.
What are magnetic field lines?
Magnetic field lines are imaginary lines used to represent the strength and direction of a magnetic field. They help us visualize how the magnetic force behaves around a magnet or a current-carrying conductor.
What is the purpose of an electric fuse in a domestic circuit?
An electric fuse protects appliances from damage by breaking the circuit if excessive current flows, preventing overheating and potential fires.
What is Fleming’s Left-Hand Rule, and where is it applied?
Fleming’s Left-Hand Rule is used to find the direction of force on a current-carrying conductor in a magnetic field. It’s applied in electric motors to understand the direction of motion.
What are the applications of electromagnetic induction?
Electromagnetic induction is used in devices like electric generators, transformers, and in technologies like magnetic levitation for high-speed trains (Maglev).
What is electromagnetic induction, and who discovered it?
Electromagnetic induction is the process by which a changing magnetic field induces a current in a conductor. Michael Faraday discovered this phenomenon.
How does the number of turns in a solenoid affect the magnetic field strength?
The magnetic field strength inside a solenoid increases as the number of turns increases, as each turn reinforces the magnetic field at the center of the solenoid.
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