Series and Parallel Circuits*

Front

What is the unit of measurement for electric current?

Back

Amperes

Front

Using Ohm's Law, how do you calculate voltage?

Back

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

Front

If a circuit has a resistance of 10 Ohms and a current of 5 Amps, what is the voltage?

Back

50 volts

Front

What happens to the total resistance in a series circuit when more resistors are added?

Back

The total resistance increases.

Front

What happens to the total resistance in a parallel circuit when more resistors are added?

Back

The total resistance decreases.

Front

In a parallel circuit, how does the voltage across each component compare?

Back

The voltage is the same across all components.

Front

In a series circuit, how does the current through each component compare?

Back

The current is the same through all components.

Front

What is the effect of adding more bulbs in a series circuit?

Back

The bulbs become dimmer.

Front

What is the effect of adding more bulbs in a parallel circuit?

Back

The bulbs remain bright and the total current increases.

Front

What is the definition of resistance in an electrical circuit?

Back

Resistance is the opposition to the flow of electric current, measured in Ohms.