Potential Difference and Voltmeters
 

Potential Difference and Voltmeters problem 25


Diagram 1 shows a voltmeter that is not connected to anything. It shows a small reading, called a zero error, because it is not correctly adjusted. Diagram 2 shows the same meter used to measure the p.d. across a resistor in a circuit.




What is the p.d. across the resistor?










 

main author and content editor: Daniel Owoyomi