Terminology
The term given to the rate at which electrons move through a wire.
current
The name given to a component in a circuit that works to slow down the current, but does not use the energy in the circuit to "do something".
resistor
The name of the unit of measurement use to represent electrical resistance.
Ohm
What is the formula for the rule of voltage in a parallel circuit?
VS = VB1 = VB2 = VB3
Draw a series circuit that has a power source of 125V. It has two lightbulbs and motor. The second lightbulb in the circuit takes 65V and the motor will take 25V. Will the first lightbulb in the circuit be brighter or less bright than the second? What is it's voltage?
35V and much less bright (more dim)
fuse
The unit of measurement used to measure the current in a circuit.
ampere
- type of material, length of the wire, diameter of the wire, temperature
In a circuit, a resistor has a resistance of 45hms and the speed of the current within 8.4A. What is the voltage provided from the power source?
378V
load
The term given to a component in a circuit that acts to control the flow of electrons in the circuit
switch
When voltage is high and resistance is low, the resulting current will be ___.
high (fast)
What is the "rule" about current in a series circuit?
Current is constant throughout the circuit.
Draw a parallel circuit that has an ammeter on the main branch that has a current running through it of 5.2A. In branch 1 there is a current running through it of 1.4A and contains two lightbulbs. In branch 2 there is 1 lightbulb and 1 motor and in branch 3 there is two motors that have a current of 2.1. What is the current moving through branch 2?
1.7A
Type of circuit created when there are multiple pathways for electrons to flow.
parallel
The term given to represent a large number of electrons.
coulombs
A remote control car takes 15V to operate and the resistance of the circuitry is 3.6 Ohms. What is the current of the circuit?
I = 4.17A
Everything else in the circuit stops working too.
Draw a parallel circuit that has a power source of 50V, 1 lightbulb in branch one, 2 identical lightbulbs in branch two and a lightbulb and a 12V motor in branch three. What are the voltages of all lightbulbs?
B2- 2, 25V lightbulbs
B3- 38V lightbulb
Another word for "voltage", demonstrating the change in energy from entering a component in the circuit, to exiting
potential difference
The name of an electrochemical reaction that converts chemical energy into electrical energy- in the smallest amounts.
A device such as a lightbulb does not have a constant resistance, but resistance increases as the lightbulb gets hotter. This means that a lightbulb is a _______.
non-Ohmic device.
In a parallel circuit, at some point, some electrons take a different pathway, OR meet up at a point to then take the same pathway back to the power source. These locations where either electrons take separate pathways or meet back up again are called ____
parallel connections
Draw a parallel circuit that contains the following: The power source is 185V. Branch one has 1 light bulb. Branch 2 has 1 lightbulb and 1 motor (which takes 50V) and on the main supply branch, returning to the positive terminal there is a motor that takes 30V. What are the voltages of the two lightbulbs in the circuit?
Lightbulb in B1 = 155V
Lightbulb in B2= 105V