The measurement errors mainly caused by human mistakes are called-
Gross error
Gross errors are the measurement errors that are mainly caused by human carelessness or mistakes during the process of taking readings, recording data, or performing calculations. While this is a human error, gross error is a broader category encompassing various human mistakes beyond just observation challenges.
Important Questions from Error Analysis
- Errors that occur after taking care of all gross and systematic errors are called as:
An ammeter of 0-50 A range has an accuracy of ± 1% of full scale reading. The current measured is 10 A. The uncertainty in measured value is
A 0-200 V voltmeter has an accuracy of 0.75% of full-scale reading. If the voltage measured is 100 V, the error is
Suppose that resistors R1 and R2 are connected in parallel to give an equivalent resistor R. If resistors R1 and R2 have tolerance of 1% each the equivalent resistor R for resistor R1 = 300 Ω and R2 = 200 Ω will have tolerance of
A \(4 \frac 1 2\) digit DMM has the error specification as 0.2% of reading +10 counts. If a d.c. voltage of 100 V is read on its 200 V full-scale, the maximum error that can be expected in the reading is
