Mathematics · Electrical Measurements
A dual-slope DVM integrates an unknown input for 100 ms and then de-integrates using a 2 V reference. The counter shows 50,000 counts. If the clock frequency is 1 MHz, calculate the input voltage and the percentage error if the clock frequency drifts by 0.05%.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12 V, 0.05%
- 20.5 V, 0.10%
- 31 V, 0.10%
- 41 V, 0.05%✓
Correct answer
1 V, 0.05%
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