Question

while experimentally Verify Ohm's law a student observed that the pointer of voltmeter coincides with 15th divison when the voltmeter has the least count of 0.05 volt find the observed reading of voltmeter

Answer 1

Hi there,

Least count of any device of measurement is the least reading it can take or measured by the device.

Thus, LC = Value in n divisions/ n

In this case LC = 0.05v and the pointer (n) is at 15th division.

Therefore, the observed reading of the voltmeter = 0.05 X 15 = 0.75 volts.

Hope it helps.....