Circuits Final Review

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit where the same current flows through all components, and there is only one path for the current to take.

Front

What happens to the current in a series circuit?

Back

The same current flows through all components in a series circuit.

Front

What is the effect of increasing resistance on current flow?

Back

Increasing resistance reduces the current flow in a circuit, according to Ohm's Law (I = V/R).

Front

What is the resistance of two 200 Ω resistors connected in parallel?

Back

100 Ω.

Front

How does the length of a wire affect its resistance?

Back

The resistance of a wire increases as its length increases.

Front

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

Back

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

Front

What is the role of a resistor in a circuit?

Back

A resistor limits the flow of electric current in a circuit.

Front

How do you measure current in a circuit?

Back

To measure current, place the leads of the ammeter in series with the circuit component.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R).

Front

What is the unit of resistance?

Back

The unit of resistance is the ohm (Ω).