Capacitive Reactance formula?

Capacitive Reactance formula?

• A. Frequency = Hz
• B. Ground-fault protections
• C. XC= 1 / 2πfC1
• D. XL=2πfL

Answer: (C)

Capacitive reactance shows how much a capacitor resists AC current, and it depends on both how fast the current is changing (frequency) and how much charge the capacitor can store (capacitance). The relationship means increasing frequency or increasing capacitance lowers the opposition to current. The standard formula is X_C = 1 / (2π f C), which is the same as X_C = 1 / (ωC). This is why that option is correct. The other options aren’t describing capacitive reactance: one is just a unit description, another refers to protections, and the remaining one is the inductive reactance formula.

Capacitive reactance shows how much a capacitor resists AC current, and it depends on both how fast the current is changing (frequency) and how much charge the capacitor can store (capacitance). The relationship means increasing frequency or increasing capacitance lowers the opposition to current. The standard formula is X_C = 1 / (2π f C), which is the same as X_C = 1 / (ωC). This is why that option is correct. The other options aren’t describing capacitive reactance: one is just a unit description, another refers to protections, and the remaining one is the inductive reactance formula.