4.13.2

Solenoid Field

Test yourself

Magnetic Field around a Coil of Wire

A solenoid is a loop of wire coiled into a cylindrical (cylinder like) shape. The magnetic field lines for a solenoid are drawn below:

Illustrative background for Inside the coilIllustrative background for Inside the coil ?? "content

Inside the coil

  • Inside the coil of wire the field lines are closely spaced parallel straight lines.
Illustrative background for OutsideIllustrative background for Outside ?? "content

Outside

  • Outside of the coil of wire, the field lines look like the field lines around a bar magnet, with a clear north and south pole.
  • The field inside the solenoid points from south to north.
    • Remember that magnetic field lines around a magnet go from North to South.

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1Motion, Forces & Energy

1.1Physical Quantities & Measurement Techniques

1.2Motion

1.3Mass & Weight

1.4Density

1.5Forces: Effects of Forces

1.6Forces: Turning Effects of Forces

1.7Forces: Centre of Gravity

1.8Momentum

1.9Energy, Work, & Power: Energy

1.10Energy, Work & Power: Work

1.11Energy, Work & Power: Energy Resources

1.12Energy, Work & Power: Power

1.13Pressure

2Thermal Physics

3Waves

4Electricity & Magnetism

4.1Simple Phenomena of Magnetism

4.2Electrical Quantities: Electric Charge

4.3Electrical Quantities: Electric Current

4.4Electromotive Force & Potential Difference

4.5Electrical Quantities: Resistance

4.6Electrical Energy & Electrical Power

4.7Electric Circuits: Circuit Diagrams & Components

4.8Electric Circuits: Series & Parallel Circuits

4.9Electric Circuits: Action & Use

4.10Electrical Safety

4.11Electromagnetic Effects: Electromagnetic Induction

4.12Electromagnetic Effects: The A.C. Generator

4.13Magnetic Effect of a Current

4.14Force on a Current-Carrying Conductor

4.15Electromagnetic Effects: The D.C. Motor

4.16Electromagnetic Effects: The Transformer

5Nuclear Physics

6Space Physics

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