Magnetic Field Definitions

Magnetic Field Lines

Magnetic Field Pattern

Magnetic Flux

Magnetic Flux Density

Magnetic Flux Linkage

What is a Magnetic Field?

What does the arrow on a magnetic field line represent?

Describe the Magnetic Field Patterns for the following scenarios:
1- Around a Single Bar Magnet
2 - Between two unlike poles
3- Between two like poles

How is a field created in a wire?

How do you determine the direction of a magnetic field around a current carrying conductor?

Why does a current carrying conductor experience a force when placed in a permanent magnetic field?

When is the force experienced by a wire in a permanent mag. field maximum?

Experimentally, it was found that the Force experienced was proportional to what four factors? Give an Equation

What are the SI units & SI Base Units for Magnetic Flux Density?

Magnetic Flux Density is a [Vector/Scalar] Quantity?

Experiment to Determine Magnetic Flux Density in a Laboratory:

*Describe what happens in the Aurora [Borealis/Australis] (Northern/Southern Lights)

What sort of motion does a charged particle undergo in a mag. field?

How can the circular motion of charged particles in a mag field be demonstrated?

Why dose a current carrying wire in a uniform mag. field experience a force?

The equation to find the force acting on a charged particle of charge, Q, moving a speed, v, in at right angles to a uniform mag. field of flux density, B.

Derive the equation F=Bev

From two suitable equations, find an equation for the radius of a circle described by a charged particle in a mag. field. State any proportionalities to r.

What is a Velocity Selector? What instruments is it used in?

What is a Velocity Selector comprised of?

What's the theory behind the Velocity Selector?

A Velocity Selector Diagram

Mass Spectrometer Diagram

Give the Equation used to predict the radius of a deflected ion in a mass spectrometer. How does this help the analysis of a compound?

What is a Hall Probe?

What is the Hall Voltage?

How can you induce an Emf in a coil of wire?

How to induce an Emf using a DC motor.

How to induce an Emf by use of a wire

Where does the electrical energy come from when an Emf is induced?

The unit for magnetic flux (Phi)

The unit for Magnetic Flux Linkage

When is an Emf induced?

State Faraday's Law. With its equation

What is the Constant of Proportionality equal to in Faraday's law and why?

What is a Transformer made of?

How do Transformers Work?

State the Turn-Ratio Equation

What do Step Up transformers do?

What equation can you use to calculate power in an electrical circuit?
How can this be used to calculate the efficiency of a transformer?

How can you make a transformer more efficient?

What is the standard voltage and frequency for all A.C generators?

Electrical power is transmitted at high [Voltages/Currents] to minimise heat losses in the transmission cables.

The power lost due to heat in the cables is given by this equation:
P(Loss)=....

Give any conclusions about what the voltage through cables should be.