Ohm's Law
1.2 A
A 12 Volt car battery pushes charge through the headlight circuit resistance of 10 ohms. How much current is passing through the circuit?
1.5 A
A 4Ω resistor in a circuit has a voltage of 6V across it. What's the current through the resistor?
0.5 A
A circuit contains a 1.5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current.
308 V
A current of 2.2A flows through a 140 Ω resistor. What is the potential difference applied to the resistor
4.69 Ω
A current of 3.2 A flows through a resistor when a potential difference of 15 V is applied to it. What is the resistance of the resistor?
100 V
A light bulb has a resistance of 5 ohms and a maximum current of 20 A. How much voltage can be applied before the bulb will break?
20 Ω
A subwoofer needs a household voltage of 110 V to push a current of 5.5 A through its coil. What is the resistance of the subwoofer?
75 Ω
An IPod uses a standard 1.5 V battery. How much resistance is in the circuit if it uses a current of 0.02A?
240 Ω
An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.
110 V
An electric heater works by passing a current of 100 A though a coiled metal wire, making it red hot. If the resistance of the wire is 1.1 ohms, what voltage must be applied to it?
50 V
How much voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of resistance?
10 A
If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?
0.07 A
What current flows through a 210 Ω resistor when a potential difference of 15 V is applied to it?
4.8 A
What current flows through a hair dryer plugged into a 120 Volt circuit if it has a resistance of 25 ohms?
