Questions and Answers
An ammeter is used to measure __________.
current
What is the unit of measurement for resistance?
Ohms
Which of the following statements is not true about measuring the resistance of a component that is connected in a circuit?
Current in a __________ circuit is divided among the branches of the circuit.
Signup and view all the answers
As branches are added to a parallel circuit, the resistance __________.
Signup and view all the answers
A(n) __________ circuit is one in which there is more than one path for current to travel.
Signup and view all the answers
Voltage is a(n) electrical __________.
Signup and view all the answers
The two ways to measure voltage are __________ and __________.
Signup and view all the answers
A multimeter is a multipurpose device that can measure __________.
Signup and view all the answers
To measure current through a component, the ammeter must be connected __________ the component.
Signup and view all the answers
If a wire has continuity, it __________.
Signup and view all the answers
Both analog and digital voltmeters measure __________.
Signup and view all the answers
A(n) __________ is used to measure resistance.
Signup and view all the answers
In a parallel circuit with a constant voltage power supply, the voltage drop across each branch is __________.
Signup and view all the answers
10mA would be an example of __________ value.
Signup and view all the answers
Study Notes
Electrical Measurements Overview
- An ammeter measures current in electrical circuits.
- The unit of measurement for resistance is ohms.
- Always ensure the power supply is off before measuring resistance to obtain accurate readings.
Circuit Types
- Current in a parallel circuit is divided among its branches.
- Adding more branches to a parallel circuit results in a decrease in resistance.
- A parallel circuit provides multiple paths for current flow.
Voltage Measurements
- Voltage represents the electrical force that drives current through a circuit.
- Two methods to measure voltage include measuring across a component and measuring from a reference point.
Multimeters and Measurement Techniques
- A multimeter can measure voltage, current, and resistance making it a versatile tool.
- To measure current through a component, connect the ammeter in series with that component.
- If a wire shows continuity, it indicates almost no resistance within it.
Voltmeters and Ohmmeters
- Both analog and digital voltmeters measure potential difference across components.
- An ohmmeter is specifically used to measure resistance in circuits.
Circuits and Voltage Drops
- In a parallel circuit with a constant voltage source, the voltage drop across each branch is equal to the power supply voltage.
- An example of a current value is 10mA.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your understanding of basic electrical measurements including current, voltage, and resistance. This quiz covers concepts related to ammeters, multimeters, parallel circuits, and safe measurement techniques.