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3 years ago

Which parts of LED bulb needs to stay cool as well as which part must transfer energy away from the diode???

Chemistry

1 answer:

storchak [24]3 years ago

6 0

Answer:

every method of removing heat from LED's should be considered. Conduction, convection, and radiation are the three means of heat transfer. Typically, LED's are encapsulated in a transparent resin, which is a poor thermal conductor. Nearly all heat produced is conducted through the back side of the chip. Heat is generated from the PN junction by electrical energy that was not converted to useful light, and conducted to outside ambiance through a long path, from junction to solder point, solder point to board, and board to the heat sink and then to the atmosphere. A typical LED side view and its thermal model are shown in the figures.

Explanation:

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What is the most significant force that attracts water molecules to each other?

Naya [18.7K]

Answer:

Hydrogen Bonds

hope this helps

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3 years ago

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The reaction between bromine gas and fluorine gas to create bromine monofluoride gas has reached equilibrium. What is the effect

DedPeter [7]

Answer: The reaction between bromine gas and fluorine gas to create bromine monofluoride gas has reached equilibrium. What is the effect of adding more bromine gas to the reaction chamber?

More fluorine gas will be produced.

More bromine gas will be produced.

More bromine monofluoride gas will be produced.

Less bromine monofluoride gas will be produced.

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Explanation:

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2 years ago

Which type of force occurs between two objects at a distance?

agasfer [191]

Answer:

Gravitational force of attraction.

Explanation:

When two bodies of masses 'm' and 'M' are separated by a distance 'r', then both the bodies experience a force of attraction towards each other. This force of attraction is called gravitational force. It is a weak force but it always act between two bodies that have mass.

The magnitude of the gravitational force is directly proportional to product of the masses and inversely proportional to the square of the distance between the masses.

This means that as the distance between the bodies is increases, the gravitational force between the bodies decreases and vice versa.

The gravitational force of attraction is given as:

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3 years ago

Elements in a given period of the periodic table contain the same number of

leva [86]

Its C, Outermost Electrons.

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3 years ago

Calculate the ph of the solution 0.2M Mg(OH)2

Kipish [7]

Mg(OH)2 is base

Oh = 0.2 x 2 = .4

Poh = - Log (.4)

= .3979

Ph + Poh = 14

Ph = 14 - .3979

= 13.60

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3 years ago

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