If voltage drop across inductor is 100V and current is 5A, what is value of inductive reactance?
A
10Ω
B
20Ω
C
30Ω
D
40Ω

Question

If voltage drop across inductor is 100V and current is 5A, what is value of inductive reactance?

Examoogle · Accepted Answer

20Ω

Explanation: Given: Voltage V = 100V, Current I = 5A Formula Used: $$X_L = \frac{V}{I}$$ Steps: Identify the known values: The voltage across the inductor is given as $V = 100 ext{V}$ and the current flowing through it is $I = 5 ext{A}$.. Apply the inductive reactance formula: Using the formula for inductive reactance, we have $$X_L = \frac{V}{I}$$.. Calculate the inductive reactance: Now, substituting the known values into the formula gives us $$X_L = \frac{100}{5} = 20 \Omega$$.. Conclude the solution: The calculated value of inductive reactance is confirmed as $20 \Omega$. Answer: B is correct because the inductive reactance calculated is $20 \Omega$. Exam Tip: This concept is crucial for understanding impedance in AC circuits, linking to topics like RLC circuits and resonance.

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