Hint - Q8

For fluctuating readings, the value taken is the mid-point reading and the estimated error is half the range of the readings.

EXAMPLE: For a digital thermometer displaying temperatures ranging from 23 to 25 °C - The recorded temperature, T = 24 ± 1 °C

Question 8

The reading taken from the voltmeter shown below is 1.49 Volts.

The error in this reading is -

± 0.001 V       ± 0.002 V       ± 0.005 V

± 0.01 V       ± 0.02 V       ± 0.05 V

± 0.1 V       ± 0.2 V       ± 0.5 V