What is the voltage drop (VDC) across a circuit with 100 ohms resistance and 0.1A current?

To determine the voltage drop across a circuit, you can apply Ohm's Law, which states that Voltage (V) is equal to the current (I) multiplied by the resistance (R). In this case, the resistance is given as 100 ohms, and the current flowing through the circuit is 0.1A.

Using the formula:

[ V = I \times R ]

you would substitute the given values:

[ V = 0.1A \times 100\Omega = 10V ]

Thus, the voltage drop across this circuit is 10 volts. This calculation confirms that this choice correctly applies Ohm's Law to find the voltage drop based on the specified resistance and current. Understanding how to apply Ohm’s Law is critical in electrical work, as it allows for the analysis of circuit behavior under different conditions.