10 Questions
What is the role of a conductor when connecting two locations with a difference in charge?
Facilitate the flow of electrons
How does placing power sources in series affect the magnitude of voltage?
Doubles the voltage
What is measured by a voltmeter?
Potential difference between two locations
How does placing power sources in parallel affect the voltage?
Doubles the charge but keeps the voltage constant
What is the function of an energy sink?
Use potential energy
What does 1 amp represent in terms of electrons flowing per second?
1 Coulomb of electrons flowing at a point per second
Why do scientists and engineers ignore the actual electron flow direction in circuits?
To align with conventional current flow direction
According to Kirchhoff's Voltage Law, what must be true in a circuit?
The sum of all voltage sources equals the sum of all voltage drops
What does Kirchhoff’s Current Law state about the sum of currents at any point in a circuit?
The sum of all currents going into/out of that point equals zero
Why does the split of current depend on resistance in a circuit according to Kirchhoff's laws?
Resistors control the flow of current in the circuit
Test your knowledge on electric potential energy, voltage, and the relationship between charge and work in circuits. Learn about increasing voltage and current in circuits by connecting power sources in series or parallel.
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