If the voltage across a capacitor in an AC circuit is 100V and the capacitive re
Practice Questions
Q1
If the voltage across a capacitor in an AC circuit is 100V and the capacitive reactance is 50 ohms, what is the current? (2023)
2A
0.5A
5A
10A
Questions & Step-by-Step Solutions
If the voltage across a capacitor in an AC circuit is 100V and the capacitive reactance is 50 ohms, what is the current? (2023)
Step 1: Identify the voltage across the capacitor, which is given as 100V.
Step 2: Identify the capacitive reactance, which is given as 50 ohms.
Step 3: Recall Ohm's law, which states that current (I) is equal to voltage (V) divided by reactance (Xc).
Step 4: Substitute the values into the formula: I = V / Xc.
Step 5: Calculate the current: I = 100V / 50Ω.
Step 6: Perform the division: 100 divided by 50 equals 2.
Step 7: Conclude that the current is 2A.
Ohm's Law in AC Circuits – Ohm's Law can be applied to AC circuits using the formula I = V/Xc, where I is the current, V is the voltage, and Xc is the capacitive reactance.