Archive

• Ohm's Law is a special relationship between current and potential difference of a component
• If resistance is constant, then the value of the current depends on the potential difference (voltage)
• For Ohm's Law to hold true, there needs to be a constant temperature
• Ohm's Law gives us the characteristic straight line graph in a current-voltage graph
• An Ohmic conductor is one that obeys Ohm's Law and produces a straight line through origin in a current-voltage graph
• A filament lamp's current-voltage graph shows that as the temperature of the filament increases, the resistance of the lamp also increases
• This graph is produced by a non-linear circuit
• Diodes only allow current to flow in one direction due to resistance differences within them
• The current-voltage graph for a diode is produced by a non-linear circuit
• A current-voltage graph is a plot of the relationship between electric current and voltage in a circuit
• Current-voltage graphs are important in physics for understanding the behavior of electrical circuits and devices
• The slope of a current-voltage graph represents the resistance of a circuit
• Ohm's Law states that the voltage across a resistor is proportional to the current flowing through it
• A linear current-voltage graph indicates that the resistance of the circuit is constant
• A non-linear current-voltage graph indicates that the resistance of the circuit is not constant and changes with the current flowing through it
• Current-voltage graphs are used in real-world applications for designing and testing electrical components and systems
• By analyzing current-voltage graphs, engineers and scientists can optimize the performance of electrical systems and develop new technologies
• Visible Light and Colours:

  • Related to the appearance of objects
  • Convex & Concave Lenses are involved
• Producing and Absorbing Radio Waves:

  • Dangers of Radiation are associated
• Properties of Electromagnetic Waves:

  • Part of the Electromagnetic Spectrum
  • Applications of Electromagnetic Waves are explored
• Frequency Range:

  • Important in understanding waves for detection & exploration
• Convex & Concave Lenses:

  • Related to Visible Light and Colours