Engineering College

Relay contacts that are defined as being normally open (n.o.) have contacts that are:_____.

Answers

Answer 1

Relay contacts that are defined as being normally open (n.o.) have contacts that are open only if  the relay coil is known to have de-energized.

What is meant by normally open contacts?

Normally open (NO) are  known to be open if there is no measure of current that is flowing through a given coil but it often close as soon as the coil is said to be energized.

Note that  Normally closed (NO) contacts are said to be closed only if the coil is said to be de-energized and open only if the coil is said to carry current or is known to have energized.

The role of relay contact is wide. The Relays are tools that are often used in the work of  switching of control circuits and it is one that  a person cannot used for power switching that has relatively bigger ampacity.

Therefore, Relay contacts that are defined as being normally open (n.o.) have contacts that are open only if  the relay coil is known to have de-energized.

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Related Questions

How can you calculate the total capacitance of a series combination of capacitors?.

Answers

The total capacitance of a series combination of capacitors can be calculated by using this formula: 1/(1/C₁ + 1/C₂ + 1/C₃ + 1/C₄).

The types of circuit.

Basically, the components of an electrical circuit can be connected or arranged in two forms and these are;

Series circuitParallel circuit

How to calculate the total capacitance of a series combination of capacitors?

Mathematically, the total (equivalent) capacitance ([tex]C_{eq}[/tex]) of an electrical circuit containing capacitors which are connected in series can be calculated by using this formula:

1/Ceq = 1/C₁ + 1/C₂ + 1/C₃ + 1/C₄

Ceq = 1/(1/C₁ + 1/C₂ + 1/C₃ + 1/C₄).

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Three electric heating elements are connected in parallel with each other and each element draws 7 a. the supply voltage is 210 v. a) what is the resistance of each heater? b) what would the current be through each of the two remaining heaters if one heater burns out?

Answers

Answer: r u single cuz i am

Explanation:

TWO students are discussing quality multimeters fuses.
Student A states fuses used in higher category meters
are sometimes filled with a sand type material that will
change to glass when exposed to high temperatures
(overload situations). Student B states ceramic fast blow
fuses have a much higher "breaking capacity" or the
fuse's ability to interrupt current flow without being
destroyed or arched over. Which student is wrong

Answers

Answer: 2nd Student (Ceramic student)

Explanation: Ceramic is reliable for fuses more than the paragraph in this states they are. Hence it would be the 2nd student who is wrong.

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