Switch FAQs:

Q: Is a switch an electrical component that can "break" or "make" an electrical circuit?

A: Yes, and interrupting the current or diverting it from one conductor to another.

Q: Is a switch flicked?

A: Yes, and the resistance must pass through a state where a quarter of the load's rated power is briefly dropped in the switch.

Q: Are switches available in many different styles and sizes?

A: Yes, and are used in numerous applications.

Q: Is a switch internally wired specifically for polarity reversal?

A: Yes.

Q: Were switches used as channel selectors on television receivers until the early 1970s?

A: Yes, as range selectors on electrical metering equipment, as band selectors on multi-band radios and other similar purposes.

Q: Are switches classified according to the arrangement of their contacts?

A: Yes.

Q: Is a switch in the on state, its resistance is near zero and very little power is dropped in the contacts?

A: Yes, when a switch is in the off state, its resistance is extremely high and even less power is dropped in the contacts.

Q: Is a switch used only where people cannot accidentally come in contact with the switch or where the voltage is so low as to not present a hazard?

A: Yes.

Q: Is a switch layered to allow the use of multiple poles?

A: Yes, and each layer is equivalent to one pole.

Q: Are switches used for isolation of circuits in industrial power distribution?

A: Yes.

Q: Is a switch closed?

A: Yes, and current flows through the hinged pivot and blade and through the fixed contact.

Q: Are switches used in circuits up to the highest voltages?

A: Yes.

Q: Is a switch a type of biased switch?

A: Yes.

Q: Are switches usually not enclosed?

A: Yes.

Q: Is a switch nonconducting?

A: Yes.

Q: Is a switch the slow opening speed and the proximity of the operator to exposed live parts?

A: Yes.

Q: Is a switch a rugged switch which is operated by foot pressure?

A: Yes.

Q: Are switches used to isolate electric power from a system?

A: Yes, and providing a visible point of isolation that can be padlocked if necessary to prevent accidental operation of a machine during maintenance, or to prevent electric shock.

Q: Is a switch opened?

A: Yes, and forming a gas plasma, also known as an electric arc.

Q: Is a switch to switch lights or other electrical equipment on or off?

A: Yes.

Q: Is a switch often used in circuit analysis as it greatly simplifies the system of equations to be solved?

A: Yes, but this can lead to a less accurate solution.

Q: Is a switch designed to switch significant power?

A: Yes, and the transitional state of the switch as well as the ability to withstand continuous operating currents must be considered.

Q: Is a switch closed and the contacts approach?

A: Yes.

Q: Are switches used for control of measuring instruments?

A: Yes, and switchgear, or in control circuits.

Q: Is a switch a button used to release a door held closed by an electromagnet?

A: Yes.

Q: Are switches operated automatically by changes in some environmental condition or by motion of machinery?

A: Yes.

Q: Is a switch a manually operated electromechanical device with one or more sets of electrical contacts?

A: Yes, and which are connected to external circuits.

Q: Is a switch a class of electrical switches that are manually actuated by a mechanical lever?

A: Yes, and handle, or rocking mechanism.

Q: Are switches installed at convenient locations to control lighting and occasionally other circuits?

A: Yes.

Q: Are switches made in many sizes from miniature switches to large devices used to carry thousands of amperes?

A: Yes.

Q: Is a switch used?

A: Yes, for example, in machine tools to interlock operation with the proper position of tools.

Q: Are switches used to prevent unauthorized use?

A: Yes.