An electrician measures the current flowing through a 1000 Ω resistor as 0.02 A. Calculate what the voltage supplied to this resistor must be.
Question
An electrician measures the current flowing through a 1000 Ω resistor as 0.02 A. Calculate what the voltage supplied to this resistor must be.
Solution
To calculate the voltage supplied to the resistor, we can use Ohm's Law, which states that the voltage across a resistor is equal to the current through it times its resistance.
The formula for Ohm's Law is: V = I * R
Where: V is the voltage, I is the current, and R is the resistance.
Given in the problem: I = 0.02 A (Amps is the unit of current) R = 1000 Ω (Ohms is the unit of resistance)
Substitute these values into the formula:
V = 0.02 A * 1000 Ω
So, V = 20 V (Volts is the unit of voltage)
Therefore, the voltage supplied to the resistor must be 20 Volts.
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