SPM Physics Form 5 - Electromagnetism

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Showing posts with label catapult field interaction of 2 magnetic field.Show all posts

Force on a Current Carrying Conductor in a Magnetic Field

Posted by Electromagnetism | 8:18 PM | catapult field interaction of 2 magnetic field |0 comments »

When a current-carrying conductor is placed in a magnetic field, the interaction between the two magnetic fields will produce a force on the conductor, which called a catapult force.

The direction of the force can be determined by Fleming's left hand rule as shown in Figure below.

The fore finger, middle finger and the thumb are perpendicularly to each other. The forefinger points along the direction of the magnetic field, middle finger points in the current direction and the thumb points along the direction of the force.

The strength of the force can be increased by:

1. Increase the current
2. Using a stronger magnet

The Catapult Field
The interaction of the two magnetic fields produces a resultant field known as catapult field as shown in the figure below.


Physics Animation
Applet
Lorentz Force

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Table of Content

·         1.1 Revision - Magnetism

·         2.1 Electromagnet

·         2.2 Straight Wire

·         2.3 Flat Coil

·         2.4 Solenoid

·         2.5 Apllication - Electric Bell

·         2.6 Application - Electromagnetic Relay

·         2.7 Application - Circuit Breaker

·         2.8 Application - Telephone Earpiece

·         3.1 Force on a Current Carrying Conductor

·         3.2 Force between 2 Current Carrying Conductor

·         3.3 Turning Effect of a Coil in a Magnetic Field

·         3.4 Direct Current Motor

·         3.5 Application - Moving Coil Meter

·         4.1 Electromagnetic Induction

·         4.2 Lenz's Law and Faraday's Law

·         4.3 DC Generator

·         4.4 AC Generator

·         4.5 Alternating Current

·         5.1 Transformer

·         5.2 Factors Affect the Efficeincy of a Transformer

·         6.1 Generation of Electricity

·         6.2 Transmission of Electricity

·         6.3 National Grid Network

Glossary

·         alternating current (1)

·         catapult field (1)

·         catapult field interaction of 2 magnetic field (1)

·         coil (1)

·         efficiency (2)

·         electric bell (1)

·         electricity generation (1)

·         electricity transmission (1)

·         electromagnet (1)

·         Faraday's Law (1)

·         Fleming's Right Hand Rule (1)

·         generator (2)

·         Lenz's Law (1)

·         magnetic field (1)

·         Magnetism (1)

·         microphone (1)

·         motor (1)

·         National Grid Network (1)

·         solenoid (1)

·         transformer (2)

·         turning effect (1)