6.3 Quizizz Circuit and Power Calcualtions

How much voltage is needed to produce a current of 6.0 A through a 24

• 4 V

• 18 V

• 30 V

• 144 V

A simple circuit is made using a battery, a light bulb, and some wire. Based on Ohm’s law, which of the following should always decrease the brightness of the light bulb?

• using less wire in the circuit

• adding a second bulb in series

• adding a second bulb in parallel

• using a battery with a greater voltage

A series circuit has a battery, a resistor, and a light bulb with a power rating of 3.0 W. If the current in the circuit is 0.90 A over a period of 20 s, what is the voltage across the light bulb?

• 0.015 V

• 0.17 V

• 0.30 V

• 3.3 V

What is the primary function of the fuse in the circuit?

• to prevent too much current from flowing through the circuit

• to supply a greater potential difference across the entire circuit

• to regulate the potential difference that is applied to the two resistors

• to increase the amount of current that is passing through the two resistors

Which of the following circuit components represents a power source?

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Which of the following circuit components represents a fuse?

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• 

Which of the following circuit components represents a resistor?

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Which of the following circuit components represents a switch?

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What is 1?

• battery

• connecting wire

• resistor

• switch

What is 2?

• battery

• connecting wire

• resistor

• switch