10. When a device is used in a circuit in which the voltage is 81 V, the current flowing through the device is 3 A. What is the resistance of the device?
A. 40.5 A B. 27 Ω C. 243 Ω D. 243 A
rly need the answer plz help
The answer would be 27 resistance because all you've got to do is divide the amount of voltage by the current to overall get the resistence. And so 81 divided by 3 is 27.