What is the equation for calculating the heat energy released during heating effect of electric current?

Answers

Answer 1

Answer: The heat energy released from a piece of wire or any other section of a circuit is:

Energy = (voltage between its ends) x (current through it) x (time it's been going)

Answer 2

Answer: The equation for calculating the heat energy released by the heating effect of electric current is given by the following equation : -

H = I²Rt

Where H stands for heat energy, I for electric current, R for resistance and t for time.

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PLEASE HELP ME Filtering occurs when __________. some light is absorbed and some light is transmitted all light transmitted all light is absorbed light reflects off a surface

Answers

Filtering of light is a process of selectively transmitting light of different wavelengths. The devices that are used to carry out this process are called optical filters for example, a plabe class or plastic devices. The answer hence to this problem is A.

a tungsten and coil has a resistance of 12 ohm at 15 degree celsius is the temperature coefficient of resistance of tungsten is 0.004 calculate the equal resistance at 80 degree Celsius

Answers

Answer:

The resistance of the tungsten coil at 80 degrees Celsius is 15.12 ohm

Explanation:

The given parameters are;

The resistance of the tungsten coil at 15 degrees Celsius = 12 ohm

The temperature coefficient of resistance of tungsten = 0.004/°C

The resistance of the tungsten coil at 80 degrees Celsius is found using the following relation;

R₂ = R₁·[1 + α·(t₂ - t₁)]

Where;

R₁ = The resistance at the initial temperature = 12 ohm

R₂ = The resistance of tungsten at the final temperature

t₁ = The initial temperature = 15 degrees Celsius

t₂ = The final temperature = 80 degrees Celsius

α = temperature coefficient of resistance of tungsten = 0.004/°C

Therefore, we have;

R₂ = 12×[1 + 0.004×(80 - 15)] = 15.12 ohm

The resistance of the tungsten coil at 80 degrees Celsius = 15.12 ohm.

How can a cyclist minimize friction as he or she rides?A.by increasing the weight of the bike
B.by increasing the trend on his or her tires
C.by decreasing the air resistance
D.by decreasing aerodynamic design

Answers

The answer would be B. All the other answers would add friction.

The answer is C. by decreasing the air restistance. Hope this helps...

What is one way that fission and fusion are similar?

Answers

Well, they both start chain reactions and they are also both used in certain nuclear bombs. Also they are both natural processes that occur in the sun, where hydrogen fuses with helium atoms and then they split by the process of fission.

Most arson fires are produced through what? Accelerants Dynamite Chemical residues Steroids

Answers

I think the correct answer from the choices listed above is the first option. Most arson fires are produced through accelerants. In fire protection, an accelerant is any substance or mixture that "accelerates" the development of fire. Hope this answers the question.

All atoms of the same element must have the same number of

Answers

Explanation:

Atomic number is defined as the total number of protons present in an element.

Each element of the periodic table has different atomic number because each of them have different number of protons.

For example, atomic number of Na is 11, and atomic number of Ca is 20.

On the other hand, atomic mass is the sum of total number of protons and neutrons present in an atom.

For example, atomic mass of nitrogen is 14 that is, it contains 7 protons and 7 neutrons.

Thus, we can conclude that all atoms of the same element must have the same number of protons.

Answer: Protons

Explanation: The number of protons corresponds to the atomic number.

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