If a potentiometer wire has a potential difference of 12V across it and is 4m lo
Practice Questions
Q1
If a potentiometer wire has a potential difference of 12V across it and is 4m long, what is the potential gradient?
3 V/m
4 V/m
2 V/m
1 V/m
Questions & Step-by-Step Solutions
If a potentiometer wire has a potential difference of 12V across it and is 4m long, what is the potential gradient?
Step 1: Identify the total potential difference (V) across the potentiometer wire, which is given as 12V.
Step 2: Identify the length (L) of the potentiometer wire, which is given as 4m.
Step 3: Use the formula for potential gradient, which is V divided by L (V/L).
Step 4: Substitute the values into the formula: 12V / 4m.
Step 5: Perform the division: 12 divided by 4 equals 3.
Step 6: State the result: The potential gradient is 3 V/m.
Potential Gradient – The potential gradient is the change in electric potential (voltage) per unit length of a conductor, calculated using the formula V/L.
