Converting Units & Ohms law Flashcards
A structure requires 250 mA for adequate cathodic protection and the total circuit resistance is 5 ohms.
What is the required voltage for this circuit?
1.25 V
The driving violate between the anodes and the structure of a cathodic protection system is 0.9 V and the protective current is 50 mA.
What is the circuit resistance?
18 ohms
A power supply will produce 20 A at 24 V.
What is the power output?
480 W
A halogen light is designed for 12 V and has a resistance of 8 ohms.
How much current will flow through it?
1.5 A
A halogen light is designed for 12 V and has a resistance of 8 ohms, which means a current of 1.5 A
Now, since you are given the current. How many watts will the halogen light require?
18 W
If a 12,000 mV car battery is connected to a headlight with 2 ohms resistance.
How much current will flow?
6 A
If a 12,000 mV car battery is connected to a headlight with 2 ohms resistance.
How much power will be consumed by the headlight?
72 W
If a motor utilizes 8 A of current and requires a source of voltage of 24V.
What is the resistance of this circuit?
3 ohms
