Using a frequency counter with an accuracy...

Question 1 / 209ZHRcOyN69KoHeF8CLOf

Question 1 of 209ZHRcOyN69KoHeF8CLOf

Using a frequency counter with an accuracy of 2 ppm which of the following are within legal tolerance for the frequencies of 2182.0 kHz and 4125.0 kHz? The counter has a display resolution of 1 Hz.

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Question 1 of 20

9ZHRcOyN69KoHeF8CLOf

Using a frequency counter with an accuracy of 2 ppm which of the following are within legal tolerance for the frequencies of 2182.0 kHz and 4125.0 kHz? The counter has a display resolution of 1 Hz.

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🔍 Key Concepts

• Parts per million (ppm) and how to convert ppm accuracy into an allowable frequency error in hertz (Hz) for a given center frequency • How to calculate the maximum permissible deviation from 2182.0 kHz and 4125.0 kHz with a 2 ppm accuracy • Understanding that 1 kHz = 1000 Hz and carefully comparing each choice’s actual frequency to the allowed range

💭 Think About

• First, convert 2182.0 kHz and 4125.0 kHz into hertz. Then, use the 2 ppm figure to calculate how many hertz of error are allowed above or below each nominal frequency. • For each center frequency, determine the upper and lower legal limits in Hz. Then check whether the candidate frequencies in each option fall within those limits. • Compare how far (in Hz) each listed frequency is from its nominal value. Ask yourself: does that difference exceed the maximum error allowed by 2 ppm?

✅ Before You Answer

• Be sure you correctly convert kHz to Hz and ppm to a fractional error (2 ppm = 2/1,000,000). • Verify that you apply the ppm tolerance to both frequencies separately; each must be within its own allowed range. • Double-check the direction and size of the error: calculate absolute difference in Hz between the nominal and actual frequency and compare it to your allowed tolerance.

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Question 1 of 20

Using a frequency counter with an accuracy of 2 ppm which of the following are within legal tolerance for the frequencies of 2182.0 kHz and 4125.0 kHz? The counter has a display resolution of 1 Hz.

2181.991 kHz and 4125.004 kHz

2182.006 kHz and 4124.995 kHz

2182.010 kHz and 4124.992 kHz

2181.990 kHz and 4125.009 kHz

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Question 1 / 209ZHRcOyN69KoHeF8CLOf

Question 1 of 209ZHRcOyN69KoHeF8CLOf

Using a frequency counter with an accuracy of 2 ppm which of the following are within legal tolerance for the frequencies of 2182.0 kHz and 4125.0 kHz? The counter has a display resolution of 1 Hz.

Back

Question 1 of 20

9ZHRcOyN69KoHeF8CLOf

Using a frequency counter with an accuracy of 2 ppm which of the following are within legal tolerance for the frequencies of 2182.0 kHz and 4125.0 kHz? The counter has a display resolution of 1 Hz.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed