A circuit has a resistor of 80Ω and a current of 2A is flowing through it. What is the voltage across the resistor?

Question: A circuit has a resistor of 80Ω and a current of 2A is flowing through it. What is the voltage across the resistor?

Solution:
To find the voltage across the resistor, I'll use Ohm's Law:
V = I × R
Where:

V is the voltage (in volts)
I is the current (in amperes)
R is the resistance (in ohms)

Given:

Resistance (R) = 80Ω
Current (I) = 2A

Substituting these values:
V = 2A × 80Ω
V = 160V
Therefore, the voltage across the 80Ω resistor is 160 volts.