A slightly long explanation of resistance.

• Ohm’s Law
• Resistance
• Factors affecting resistance
• Joule Heating

Let’s go!

Continue reading “PHY C19: Resistance” →

The next concept we need to explore is potential difference.

• Potential Difference
  • V = W/Q
  • Assumptions in circuits
• Electrical Power
  • P = VI
  • Power ratings

Let’s go!

Continue reading “PHY C19: Potential Difference & Power” →

Our first step into the world of electricity.

• Electric Charge
  • Charge carriers
  • Quantisation & Elementary charge
• Current
• Formula describing current in a conductor: I = nAvq

Let’s go!

Continue reading “PHY C19: Charge & Current” →

Let’s wrap up everything with know about electric fields:

• Electric Potential Energy
• Electric Potential
• Potential Difference
• Relationship between Electric Potential & Electric Field Strength
• Graphs

Let’s go!

Continue reading “PHY C17: Electric Potential Energy” →

After our basic understanding of electric field strength, we can now take a (slightly) deeper look:

• Formula: E = kQ/r²
• Graphs

Continue reading “PHY C17: Electric Field Strength (A2)” →

Let’s dig deeper into electric fields now.

• Point Charges
• Coulomb’s Law
• Proportionality constant for Coulomb’s Law

Let’s go!

Continue reading “PHY C17: Electric Fields (A2)” →

In my previous post, I explained uniform electric field strength & derived its formulae. Now let’s look at a few applications:

• Problems involving basic forces
• Problems involving motion of charges
  • Utilising the conservation of energy

Continue reading “PHY C17: Solving Problems involving Uniform Electric Fields (AS)” →

This post covers:

• Electric Field Strength
  • Uniform Fields & when they occur
  • Formula derivation

Let’s go!

Continue reading “PHY C17: Electric Field Strength (AS)” →

If you read my post about fields, you should remember that fields and forces are influenced by certain properties of matter. In this chapter, we look at fields affected by the ELECTRIC CHARGE.

• Electric Forces
• Electric Fields
• Electric Conductors & Insulators
  • Charging objects

Continue reading “PHY C17: Electric Forces & Fields (AS)” →

The final entry of the fields trilogy:

• Field Potential Energy
• Field Potential
• How forces arise through potential differences

Let’s jump in!

Continue reading “PHY: Fields & Energy” →