Question text
3 A micrometer is used to measure the diameter of a uniform wire. screw wire rotating scale fixed scale What is done to obtain an accurate answer? A Make the micrometer horizontal and then use the scales to find the reading. B Subtract the fixed-scale reading from the rotating-scale reading. C Subtract the rotating-scale reading from the fixed-scale reading. D Use the scales to find the reading and add or subtract any zero error.
3 A micrometer is used to measure the diameter of a uniform wire.
screw
wire
rotating scale
fixed scale
What is done to obtain an accurate answer?
A Make the micrometer horizontal and then use the scales to find the reading.
B Subtract the fixed-scale reading from the rotating-scale reading.
C Subtract the rotating-scale reading from the fixed-scale reading.
D Use the scales to find the reading and add or subtract any zero error.
Select your answer: