What are the three main quantities in an electric circuit? Name their SI units.

State Ohm's Law.

A current of 2 A flows through a 6 Ω resistor. What is the potential difference (voltage) across it?

How should an ammeter be connected in a circuit to measure current? (Series or Parallel?)

How should a voltmeter be connected to measure the potential difference across a bulb? (Series or Parallel?)

Calculate the total equivalent resistance of a 3 Ω and a 6 Ω resistor connected in series.

Calculate the total equivalent resistance of a 3 Ω and a 6 Ω resistor connected in parallel.

What is the difference between conventional current and electron flow?

A potential difference of 12 V is applied across a 100 Ω resistor. What is the current flowing through it?

List two factors that affect the resistance of a wire.

In a series circuit, what can you say about the current flowing through each component?

In a parallel circuit, what can you say about the potential difference across each branch?

Which combination of resistors (series or parallel) gives a total resistance that is less than the smallest individual resistor?

What is the function of a resistor in a circuit?

Why does a thicker wire have less resistance than a thinner wire of the same material and length?