Circuits Review Flashcard

Front

Which way does charge flow in a circuit? ___________ to __________

Back

Positive to Negative

Front

A voltmeter should be wired in ________ and an ammeter should be wired in _______

Back

Voltmeter: parallel, Ammeter: series

Front

A voltmeter should be wired in ________

Back

parallel

Front

Equivalent resistance of a circuit means ___________

Back

total resistance of the circuit

Front

What device should be used to prevent too much current in a series circuit with lightbulbs?

Back

fuse

Front

What is the unit of electric current?

Back

Ampere (A)

Front

What is the formula for calculating total resistance in a series circuit?

Back

R_total = R1 + R2 + R3 + ...

Front

What is the formula for calculating total resistance in a parallel circuit?

Back

1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

Front

What is Ohm's Law?

Back

V = I * R (Voltage = Current x Resistance)

Front

What is the function of a resistor in a circuit?

Back

To limit the flow of electric current.