Question
You are investigating the resistance in a piece of wire. You are using the Vernier calipers below to measure the diameter of a piece of wire . What is the diameter of the wire to 2 decimal places? Enter your answer as a nur mm Main Scale
Answer
3.7
(291 Votes)
Norman
Professional · Tutor for 6 years
Answer
Using the formula, the diameter of the wire is
Explanation
## Step 1: First, we need to understand how to read a Vernier caliper. The measurement on a Vernier caliper is the sum of the main scale reading and the Vernier scale reading.## Step 2: The main scale reading is the value that the zero on the Vernier scale has passed. In this case, it is 3.4 mm.## Step 3: The Vernier scale reading is the value on the Vernier scale that aligns exactly with a value on the main scale. In this case, it is 0.07 mm.## Step 4: To find the diameter of the wire, we add the main scale reading and the Vernier scale reading.### The formula for the diameter of the wire is: ###