What is the maximum voltage that can be measured using a potentiometer with a 20 m wire and a potential gradient of 0.1 V/m?

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Q: What is the maximum voltage that can be measured using a potentiometer with a 20 m wire and a potential gradient of 0.1 V/m?

Solution: Maximum voltage = Potential gradient × Length = 0.1 V/m × 20 m = 2 V.

Steps: 7

Step 1: Understand what a potentiometer is. It is a device used to measure voltage by comparing it to a known voltage.
Step 2: Identify the given information. We have a wire that is 20 meters long and a potential gradient of 0.1 volts per meter.
Step 3: Know what potential gradient means. It tells us how much voltage there is for each meter of the wire.
Step 4: Use the formula to find the maximum voltage. The formula is: Maximum voltage = Potential gradient × Length of the wire.
Step 5: Plug in the values into the formula. Here, the potential gradient is 0.1 V/m and the length is 20 m.
Step 6: Calculate the maximum voltage. Multiply 0.1 V/m by 20 m to get 2 V.
Step 7: Conclude that the maximum voltage that can be measured is 2 V.