Physics - 4/30/21

The picture shows an electrical circuit. This circuit is a series circuit because: 

• It has 3 light bulbs.
• The same current flows through all three light bulbs.
• It uses a single battery.
• The electrical current is divided between the three light bulbs.

With three 10 resistors connected in series with a 30 volt power supply, the total circuit current will equal ____.

• 300 amps

• 1 amp

• 150 amps

• 1 millamp

Using the circuit shown solve for total power dissipated in this circuit.

• 20 watts

• 30 watts

• 1.8 Kilowatts

• 180 watts

The voltage drop across R1 is ______________________________ V.

• 20

• 30

• 40

• 50

The wattage being dissipated at R3 is ______________________________ W.

• 18

• 54

• 36