Circuit Questions

This circuit would be...

• open

• closed

What happens when you disconnect a component from a series circuit?

• The circuit opens and everything shuts off

• everything else gets more power

• everything downstream goes out

The newest generation of smartphone uses three different batteries connected in series. If each battery is rated at 2.4 V, what is the overall voltage provided to the phone?

• 0 V

• 2.4 V

• 7.2 V

• 13.8 V

One light bulb in the kitchen burns out and several lights go out in the house. This indicates that the bulbs were wired in —

• series

• parallel

• reverse

• different circuits

A single 12.0 V battery is connected in series with two identical 10 Ω resistors. What is the current moving through the first resistor?

• 0.6 A

• 17 A

• 120 A

• 240 A

How can you calculate the electrical resistance given the information below?

• Find the area under the curve

• Average the x and y intercepts

• Find the inverse of the slope

• Find the slope of the graph

A student examining a flashlight observes that it uses a traditional incandescent light bulb. The power rating of the bulb is 60 W, and the bulb is connected to 36 V. What is the current moving through the bulb?

• 17 A

• 24 A

• 96 A

• 2,160 A

A 20A fuse is connected in series with a circuit containing a 240 V source. What is the minimum resistance required to prevent the fuse from melting?

• 0.83 Ω

• 12 Ω

• 120 Ω

• 240 Ω

If the battery is 5.0 volts, what is the power dissipated by the circuit in the graphic?

• 0.29 watts

• 0.83 watts

• 5 watts

• 30 watts

How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor?

• 48 Volts

• 12 Volts

• 14 Volts

• 2 Volts