Series and parallel circuits

Learning goals We are learning to draw circuit diagrams. We are learning the difference between series and parallel circuits.

Current electricity charges (electrons) that move through an electrical circuit uses:

circuit must have a load, source and conducting wire

Circuit diagrams use symbols to show the components in a circuit draw this chart please: Component Function Symbol

wire conductor allows electrons to flow

Cell, battery electrical source longer side is the positive terminal shorter side is the negative terminal

Lamp (light bulb) specific load converts electrical energy to light and heat

resistor general load converts electricity to heat

switch opens and closes the circuit

ammeter measures current through a device connected in series

voltmeter measures voltage across a device connected in parallel

rules use the correct symbol use a ruler for straight lines, 90° angles label + and – on energy source label direction of current flow (charges moves from the negative terminal of the power source to the positive terminal)

Series circuit an electric circuit in which the components are arranged one after another in series only one path along which electrons can flow

Parallel circuit an electric circuit in which the parts are arranged so that electrons can flow along more than one path each component has its own path for current

Try this Draw a circuit diagram of a series circuit with a battery, connecting wires, and one light bulb. Draw a circuit diagram of a parallel circuit with a battery, connecting wires, and two light bulbs.

Learning goals We are learning to draw circuit diagrams. We are learning the difference between series and parallel circuits.

Please complete 13.1 #1 – 7