What is the cut off frequency for an RL series circuit if R = 1500 ohm and L = 100 mH?Group of answer choices238.9 Hz239 Hz0.234 Hz2389 Hz
Question
What is the cut off frequency for an RL series circuit if R = 1500 ohm and L = 100 mH?
Group of answer choices
- 238.9 Hz
- 239 Hz
- 0.234 Hz
- 2389 Hz
Solution
The cut-off frequency (f) for an RL series circuit can be calculated using the formula:
f = R / (2 * π * L)
Where: R = Resistance (in ohms) L = Inductance (in henries)
Given: R = 1500 ohms L = 100 mH = 0.1 H (since 1H = 1000 mH)
Substituting these values into the formula, we get:
f = 1500 / (2 * π * 0.1) f = 1500 / (0.2 * π) f = 2387.32 Hz
So, the cut-off frequency is approximately 2387.32 Hz. However, if we round it to the nearest whole number, it becomes 2387 Hz. None of the options provided exactly match this result, but 2389 Hz is the closest one.
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