Question

Three types of voltage indicators/testers discussed in this lesson are __?__. A - I, II, and III B - I, II, and IV C - I, III, and IV D - II, III, and IV.

Answer 1

Three types of voltage indicators/testers discussed in this lesson are C - I, III, and IV.The correct answer is C - I, III, and IV.

Step-by-step explanation:

In electrical engineering, voltage indicators or testers play a crucial role in ensuring the safety of personnel and equipment. The three types discussed in this lesson are I, III, and IV.

Type I is a non-contact voltage tester, which can detect the presence of voltage without direct contact with the conductor. This is particularly useful for identifying live wires in a circuit without risking physical contact.

Type III represents a multimeter, a versatile tool that can measure various electrical parameters, including voltage, current, and resistance. A multimeter is an essential device for troubleshooting electrical circuits, providing accurate readings for different components.

Type IV is a neon circuit tester, commonly known as a voltage tester with a neon bulb. This simple but effective tool indicates the presence of voltage by illuminating the bulb when in contact with a live conductor. It is a handy and cost-effective option for basic voltage testing.

In summary, the combination of these three types (I, III, and IV) provides a comprehensive approach to voltage testing, covering non-contact detection, precise measurement, and a straightforward indication of live circuits. Understanding and utilizing these different types of voltage indicators are essential skills for anyone working with electrical systems to ensure safety and proper functionality.

The correct answer is C - I, III, and IV.

Answer 2

The three types discussed are digital voltmeters, analog voltmeters, and specific voltage testers. Digital voltmeters provide readings digitally and analog voltmeters use a physical mechanism for readings. Voltage testers are used for various specific testing scenarios.

Step-by-step explanation:

The three types of voltage indicators/testers discussed are likely to be digital voltmeters, analog voltmeters, and other special voltage testers. Digital voltmeters use an analog-to-digital converter and provide readings on a digital display. Conversely, analog voltmeters use a galvanometer, with a pointer indicating the value on a scale. Other voltage testers might include devices specifically designed for testing certain types of batteries or circuits, as suggested by some of the reference information you provided.

As for connecting these meters, a voltmeter is connected across components to measure potential difference, whereas an ammeter is connected in series with the circuit to measure current. The way you connect an ohmmeter may vary depending on what you're measuring, but typically it’s disconnected from any power source and used to measure resistance across components or sections of a circuit.