4.2 - Voltmeter Use
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the primary function of a voltmeter?
💡 Hint: Think about what we measure in electrical terms.
How should a voltmeter be connected in a circuit?
💡 Hint: Remember the phrase 'Parallel for potential'.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a voltmeter?
💡 Hint: Focus on the role of the device.
True or False: A voltmeter should be connected in series.
💡 Hint: Think about how we want the voltmeter to interact with the circuit.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
You recorded a voltage of 8.5 V across a resistor using a voltmeter that has an internal resistance of 20 kΩ in a circuit with a total series resistance of 100 kΩ. Calculate the actual voltage across the resistor and discuss the implications.
💡 Hint: Consider how much current flows and how parallel resistance affects readings.
A voltmeter connected across a resistor with a high resistance reads 11 V. If the resistor is actually part of a circuit supplying 24 V total, what could be happening? What would you expect to happen if you change to a higher resistance voltmeter?
💡 Hint: Think about how voltmeter specifications might lead to differences in readings.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.