What is the unit of measurement for current?
Amps
Current is the amount of electric charge flowing through a circuit.
What device is used to measure voltage in a circuit?
Voltmeter
Voltmeters measure the voltage and must be connected in parallel to the component being measured.
Voltage is measured in _______.
Volts
Voltage represents the push of energy and the difference in electrical energy between two points.
What is the relationship between potential difference and current?
The bigger the potential difference, the bigger the current
This indicates that higher voltage leads to increased current flow.
What is the unit of measurement for voltage?
Volts
Voltage is the difference in electrical energy between two points.
What device is used to measure current in a circuit?
Ammeter
Ammeters measure the current and must be connected in series with the circuit.
Current is measured in _______.
Amps
Current is the flow of electric charge in a circuit.
What happens to current in a series circuit?
Current is the same throughout the circuit
This means that current is conserved in a series circuit.
What happens to current in a parallel circuit?
Current can vary across different branches
Each branch can have different current values based on resistance.
What is resistance?
Resistance makes it more difficult for current to flow
Higher resistance results in lower current, while lower resistance allows higher current.
How can we calculate resistance?
Using current and voltage
Resistance can be calculated if both current and voltage values are known.
In a parallel circuit, what is true about the potential difference across each branch?
The potential difference is the same
This means that each branch experiences the same voltage.
When there is more than one component on a branch of a circuit, what happens to the potential difference?
It adds up to give the total potential difference supplied by the battery
This indicates that voltage can be divided among components in a branch.
What is the effect of higher resistance on current?
Lower current
Higher resistance restricts the flow of electric charge.
What is the effect of lower resistance on current?
Higher current
Lower resistance allows more electric charge to flow through the circuit.
