If the voltage across a capacitor in an AC circuit is 100 V and the capacitive r
Practice Questions
Q1
If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 ohms, what is the current through the capacitor? (2021)
2 A
1 A
0.5 A
0.25 A
Questions & Step-by-Step Solutions
If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 ohms, what is the current through the capacitor? (2021)
Step 1: Identify the voltage across the capacitor, which is given as 100 V.
Step 2: Identify the capacitive reactance, which is given as 50 ohms.
Step 3: Use the formula for current in an AC circuit with a capacitor: I = V / Xc.
Step 4: Substitute the values into the formula: I = 100 V / 50 ohms.
Step 5: Calculate the current: I = 2 A.
Ohm's Law in AC Circuits – The relationship between voltage, current, and reactance in an AC circuit, where current is calculated as the voltage divided by the capacitive reactance.
