Question

Select the best answer to make the statement true, and place the letter of the answer in the space provided. The type of switch used in remote control systems is a single-pole, double-throw switch, and is a. normally closed. b. a two-terminal switch. c. a momentary contact switch. d. energized by a relay. e. sometimes used in 120 -volt circuits.

   Select the best answer to make the statement true, and place the letter of the answer in the space provided.
The type of switch used in remote control systems is a single-pole, double-throw switch, and is
a. normally closed.
b. a two-terminal switch.
c. a momentary contact switch.
d. energized by a relay.
e. sometimes used in 120 -volt circuits.

Electricity 1: Devices, Circuits and Materials

Thomas Kubala 9th Edition

Chapter 20, Problem 18

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Step 1

It can be used in various circuits, including 120-volt circuits, so option e is possible. However, this doesn't specifically relate to its use in remote control systems. Option a, normally closed, refers to the default state of a switch. In a normally closed Show more…

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Select the best answer to make the statement true, and place the letter of the answer in the space provided. The type of switch used in remote control systems is a single-pole, double-throw switch, and is a. normally closed. b. a two-terminal switch. c. a momentary contact switch. d. energized by a relay. e. sometimes used in 120 -volt circuits.

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Key Concepts

Single-Pole Double-Throw (SPDT) Switch

An SPDT switch features one common terminal connected to one of two other terminals, allowing the selection between two different circuits or signal paths. This versatility makes it useful in various control applications where switching between two options is required.

Momentary Contact Switch

A momentary contact switch completes or breaks an electrical circuit only while it is actively actuated, meaning the contact returns to its normal position once the action is released. Its temporary engagement is ideal for control systems that require a brief signal or activation, such as remote control systems.

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