Section 7: Electron flow and Section 8: Junctions and parallel circuits Section 9: Series circuit calculations

What causes current in metal conductors?

The movement of negatively charged electrons.

Which way do electrons flow?

From the negative terminal to the positive terminal.

. Which way does conventional current flow?

From the positive terminal to the negative terminal.

4. What happens to current at a junction?

Total current entering equals total current leaving.

What happens to current in parallel branches?

Current splits between the branches.

What happens to voltage across parallel components?

Voltage is the same across each branch.

47. How do you calculate total resistance in series?

Add the resistances together.

What happens to current in a series circuit?

It is the same through every component.

What happens to voltage in a series circuit?

t is shared between the components.

How do you calculate voltage across a resistor?

V = I × R

What must voltage drops in a series circuit add up to?

The total supply voltage.