7th Ohm's Law and circuits quiz

In a series circuit, if one of the components fails, what happens to the entire circuit?

• The circuit continues to work normally

• The circuit stops working

• Only the failed component stops working

• The circuit becomes a parallel circuit

If the voltage across a resistor is doubled, what happens to the current through the resistor, assuming resistance remains constant?

• The current is halved

• The current remains the same

• The current is doubled

• The current is tripled

Which symbol represents a resistor in a circuit diagram?

• 
• 
• 
• 

A circuit consists of a 12V battery and three resistors in series, each with a resistance of 2 ohms. The total resistance of the circuit is (a)   ohms.

In a parallel circuit, if one branch is removed, what happens to the total current in the circuit?

• The total current increases

• The total current decreases

• The total current remains the same

• The circuit stops working

A circuit has a total resistance of 10 ohms and a current of 2 amperes. What is the voltage across the circuit? (a)   Volts

Draw a parallel schematic with 12volt battery source and 3 light bulb resistors.

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NGSS.MS-ETS1-1

How does increasing the resistance in a circuit affect the current, assuming the voltage remains constant?

• The current increases

• The current decreases

• The current remains the same

• The current becomes zero

A student is given a circuit with a 9V battery and a resistor of unknown resistance. The current measured is 2A. Calculate the resistance (a)   ohms

A circuit diagram includes a battery, a switch, and a light bulb. What happens when the switch is closed?

• The light bulb turns off

• The light bulb turns on

• The circuit becomes open

• The battery stops working