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Electrical Engineering > Units Associated With Basic Electrical Quantities > Flashcards

Units Associated With Basic Electrical Quantities Flashcards

1
Q

Electrical engineering

Unit for length?

A

Metre, m

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2
Q

Electrical engineering

SI unit for mass?

A

Kilogram, kg

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3
Q

Electrical engineering

SI unit for time?

A

Second, s

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4
Q

Electrical engineering

SI unit for electrical current?

A

Ampere, A

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5
Q

Electrical engineering

SI unit for thermodynamic temperature?

A

Kelvin, K

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6
Q

Electrical engineering

SI unit for luminous intensity?

A

Candela, cd

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7
Q

Electrical engineering

SI unit for amount of substance?

A

Mole, mol

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8
Q

Electrical engineering

SI unit for charge?

A

Coulomb, C

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9
Q

Electrical engineering

What is the definition of a coulomb?

A

The coulomb is defined as the quantity of electricity which flows past a given point in an electrical circuit when a current of one ampere is maintained for one second.

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10
Q

Electrical engineering

What is the equation for charge in coulombs?

A

Coulombs (Q) = Current (ampères, I) * Time (seconds, s)

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11
Q

Electrical engineering

SI unit for work or energy?

A

The Joule (J)

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12
Q

Electrical engineering

What is the equation for Joules in electrical terms?

A

E = PT where E is energy in joules, J, P is power in watts, W, and T is time is seconds,s.

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13
Q

Electrical engineering

SI unit of power?

A

Watt, w

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14
Q

Electrical engineering

What is the definition of one watt?

A

One watt is one Joule per second.

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15
Q

Electrical engineering

What is the definition of power?

A

Power is defined as the rate of doing work or transferring energy.

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16
Q

Electrical engineering

What is the equation and SI unit for work done?

A

W=Fs where F is force in newtons and s is displacement in metres. SI unit is Joules.

17
Q

Electrical engineering

What is the equation for power in watts?

A

Power = Work done/time

Electrical Engineering (3 decks)

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