High School Physics : Use Ohm's Law
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Example Questions
Example Question #1 : Electric Circuits
What is the voltage of a circuit with 
For this problem, use Ohm's law: 
Plug in the given values and solve for the voltage.
Example Question #2 : Electric Circuits
What is the current of a circuit with a voltage of 
For this problem, use Ohm's law: 
We can re-arrange the equation to solve specifically for 
Plug in the given values for voltage and resistance to solve for the current.
Example Question #3 : Electric Circuits
What is the resistance in a circuit with a voltage of 
For this problem, use Ohm's law: 
We can re-arrange the equation to solve specifically for 
Plug in the given values for voltage and current and solve for resistance.
Example Question #4 : Electric Circuits
A 
For this problem, use Ohm's law: 
We are given the voltage and current, allowing us to solve for the resistance.
Example Question #3 : Electricity And Magnetism
A closed electric circuit is set up so that there is a current of 
For this problem, use Ohm's law: 
We are given the current and the voltage. Using these terms, we can solve for the resistance.
Example Question #4 : Electricity And Magnetism
The current in a circuit is 
For this problem use Ohm's law:
We are given the current and the voltage, allowing us to solve for the resistance.
Example Question #5 : Electric Circuits
An electrical circuit has a total of 
For this problem use Ohm's law:
We are given the resistance and the voltage, allowing us to solve for the current.
Example Question #6 : Electric Circuits
An electrical circuit has a current of 
For this problem use Ohm's law:
We are given the resistance and the current, allowing us to solve for the voltage.
Example Question #7 : Electric Circuits
An electrical circuit has a current of 
For this problem use Ohm's law:
We are given the resistance and the current, allowing us to solve for the voltage.
Example Question #11 : Electricity And Magnetism
A circuit has a current, 
There is insufficient information to solve
To solve this problem, use Ohm's law:
Since we are doubling the current, but the voltage is remaining the same, we can set our old and new equations equal to each other.
We know that the second current is equal to twice the first current.
Use this equation to substitute current into the first equation.
The initial current now cancels out from both sides.
Divide both sides by two to isolate the final resistance variable.
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