AS Physics- Electricity

How are current and charge related?

Define the coulomb

Define potential difference

Name an environmental factor likely to alter the resistance of a component?

What is special about an ohmic conductor?

What does the circuit used to determine the IV characteristics of a component look like?

For a filament lamp, what is the relationship between the resistance and temperature of a metal? What does this look like on a graph?

Why does the graph of a diode look like it does?

What is an LDR?

What happens to a superconductor when it's cooled to it's critical temperature?

Give some uses of superconductors

What are the units for resistivity?

What is the equation linking power, current and resistance?

What equation links power, voltage and resistance?

What causes internal resistance?

What is the difference between e.m.f and terminal p.d?

Kirchhoff's first law states that the total current entering a junction...

Kirchhoff's second law states that the total e.m.f around a series circuit...

What is a potential divider?

Define the term "time period" for an alternating signal

How do you find the frequency?

Why are rms values used?