Electrical L3 No1

What are the units for Voltage?

• Amperes

• Current

• Volteres

• Volts

What is voltage?

• A measure of the speed of electrons.

• A measure of the energy given to electrons.

• The flow of electricity.

• The number of cells in a circuit.

What piece of equipment would you use to measure the voltage?

• An ammeter

• A voltmeter

• A wire

• A voltage meter

What energy place occurs in an alkaline cell (battery)?

• Electrical -> Kinetic

• Kinetic -> Electrical

• Chemical -> Kinetic

• Chemical -> Electrical

What can be said about the Voltages in a closed loop?

• They are all the same.

• When added up they equal to the supply Voltage.

• They are common to each resistor.

• They will be lower than the lowest.

Estimate the total resistance of this circuit

• 8Ω

• 18Ω

• 4Ω

• 10Ω

If the current in the 6Ω resistor is 1.4 Amps, what is the current in the 4Ω resistor?

• 0.5 Amps

• 0.7 Amps

• 1.4 Amps

• 0.9 Amps

What is a current?

• A constant flow of electricity 
• A path that a current can flow along

What is a circuit?

• A constant flow of electricity 
• A path that a current can flow along

What are the 3 basic components of a circuit?

• Energy source, Load, Energy Pathway
• Battery, Energy source, Energy Pathway
• Battery, Wire, Energy Pathway
• ALL of them