If a potentiometer is used to measure a voltage of 12 V and the length of the wi
Practice Questions
Q1
If a potentiometer is used to measure a voltage of 12 V and the length of the wire used is 6 m, what is the potential gradient?
2 V/m
4 V/m
6 V/m
8 V/m
Questions & Step-by-Step Solutions
If a potentiometer is used to measure a voltage of 12 V and the length of the wire used is 6 m, what is the potential gradient?
Correct Answer: 2 V/m
Step 1: Identify the voltage that needs to be measured, which is 12 V.
Step 2: Identify the length of the wire used for the measurement, which is 6 m.
Step 3: Use the formula for potential gradient, which is: Potential Gradient = Voltage / Length.
Step 4: Substitute the values into the formula: Potential Gradient = 12 V / 6 m.
Step 5: Perform the division: 12 V divided by 6 m equals 2 V/m.
Step 6: Conclude that the potential gradient is 2 V/m.
Potential Gradient – The potential gradient is the rate of change of electric potential (voltage) per unit length of a conductor, calculated as voltage divided by length.
