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Electric Potential Energy and Voltage Quiz

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Electric Potential Energy and Voltage Quiz

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Questions and Answers

What is the role of a conductor when connecting two locations with a difference in charge?

Increase the magnitude of voltage

Reduce the pressure between the locations

Decrease the number of available charges

Facilitate the flow of electrons (correct)

How does placing power sources in series affect the magnitude of voltage?

Halves the charge

Increases the available charges

Decreases the voltage

Doubles the voltage (correct)

What is measured by a voltmeter?

Total charge in a location

Magnitude of current flow

Number of available charges

Potential difference between two locations (correct)

How does placing power sources in parallel affect the voltage?

Doubles the charge but keeps the voltage constant (C) Signup and view all the answers

What is the function of an energy sink?

Use potential energy (A) Signup and view all the answers

What does 1 amp represent in terms of electrons flowing per second?

1 Coulomb of electrons flowing at a point per second (A) Signup and view all the answers

Why do scientists and engineers ignore the actual electron flow direction in circuits?

To align with conventional current flow direction (C) Signup and view all the answers

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 (D) Signup and view all the answers

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 (A) Signup and view all the answers

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 (A) Signup and view all the answers