If the voltage across a capacitor in an AC circuit is 100 V and the capacitive r

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What’s inside this PDF?

Question: If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 Ω, what is the current through the capacitor? (2021)

Options:

2 A
0.5 A
5 A
10 A

Correct Answer: 0.5 A

Exam Year: 2021

Solution:

Using Ohm\'s law, I = V/Xc = 100 V / 50 Ω = 2 A.

If the voltage across a capacitor in an AC circuit is 100 V and the capacitive r

Practice Questions

If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 Ω, what is the current through the capacitor? (2021)

2 A
0.5 A
5 A
10 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 Ω, 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 Ω.
Step 3: Recall Ohm's law, which states that current (I) is equal to voltage (V) divided by resistance (R). In this case, the capacitive reactance (Xc) acts like resistance.
Step 4: Substitute the values into the formula: I = V / Xc.
Step 5: Calculate the current: I = 100 V / 50 Ω.
Step 6: Perform the division: 100 divided by 50 equals 2.
Step 7: Conclude that the current through the capacitor is 2 A.

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.
Capacitive Reactance – Capacitive reactance (Xc) is the opposition that a capacitor offers to the flow of alternating current, measured in ohms.

If the voltage across a capacitor in an AC circuit is 100 V and the capacitive r

What’s inside this PDF?

If the voltage across a capacitor in an AC circuit is 100 V and the capacitive r

Practice Questions

Questions & Step-by-Step Solutions

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