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| Q. |
At high frequencies when the sampling interval is too long in a frequency counter |
| A. | the counter works fine |
| B. | the counter undercounts the frequency |
| C. | the measurement is less precise |
| D. | the counter overflows |
| Answer» D. the counter overflows | |
| Explanation: let the sampling time be 1 sec. this means the counter will count the number of pulses from the unknown signal for 1sec duration and would display it after 1 sec. thus if the signal is of 800 hz, at the end of 1 sec, counter would have counted up to 800. thus, in case of high frequencies and high sampling time, counter might count beyond its limit and overflows. | |
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