A heater has a resistance of 15 Ω. It operates on 120 V. What thermal energy is supplied by the heater in 2 minutes?

Answers

Answer 1

Answer:

E = 115.2 kJ

Explanation:

Given that,

Resistance, R = 15 ohms

Voltage, V = 120 V

We need to find the energy supplies by the heater in 2 minutes or 120 s.

The formula for the thermal energy supplies is given by :

[tex]E=I^2Rt[/tex]

We know that, V = IR

So,

[tex]E=\dfrac{V^2t}{R}\\\\E=\dfrac{(120)^2\times 120}{15}\\\\E=115200\ J\\\\E=115.2\ kJ[/tex]

So, 115.2 kJ of energy is supplied.


Related Questions

Using complete sentences, explain what ethics is and why ethics in engineering is important. How does it affects the manufacturing processes of a specific good.


will mark brainliest please help.

Answers

According to Oxford dictionary states “the branch of knowledge that deals with moral principles “

And according to blog v-hr.com sums up saying it should be celebrated as something to be proud which brings concerns forward and to see if something is unsafe

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Thx :) so much :))))))

Answer:

Hey mate.....

Explanation:

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How does the strength of the bar magnet effect the induced current?

Answers

Answer:

your answer is c does not effect current


Which of the following behaviors should be avoided? Check all of the boxes that apply.
keeping someone from using the Internet
sending e-mail to your teacher
sharing private information by posting it publicly on the Internet
using a computer at school to play games when someone else needs it for schoolwork

Answers

Avoidable actions include preventing someone from using the Internet, disclosing private information by publicly putting it on the Internet, and using a computer at school to play games while someone else needs it for study.

Which behaviors should be avoided?

Negative behavior is defined as anti-social behavior. That is behavior that is not acceptable in society and can impair the well-being and image of the society.

Negative interactions can involve, among other things, preventing people from expressing their thoughts, making negative remarks, violating another's privacy, meddling in another's problems, or failing to offer promised assistance.

Preventing someone from using the Internet, disclosing private information by publicly posting it on the Internet, and using a computer at school to play games while someone else needs it for study are all avoidable actions.

A country where the majority of its residents participate in undesirable behavior lends a terrible name, a bad image, and disrespect to the government.

Therefore, option A, C and D are correct.

Learn more about the behaviors, refer to:

https://brainly.com/question/9152289

#SPJ2

Answer:

A. C. D.

Explanation:

From edge

make list of possible projects you would like consider doing in the place you live and could be a simple paint job or a bookcase or piece of furniture

plz help ​

Answers

Answer:

Make a model of an highway to study the physics and how the road and velocity of a car.

Please help me
Distinguish between the first two steps of an implementation plan: stating the problem and evaluating the problem.

Answers

Answer:

The first step of the problem solving process is to identify and define the problem. The second step, which is to analyze the problem, involves gathering information, sorting through relevant and irrelevant information, and evaluating the source of the problem by asking the Five W's: who, what, where, when, and why.

Three (3) Types of Section Views used in engineering drawing are

Plan, Front and End

Orthographic, Isometric and Oblique Section

Full, Half and Offset Section

None of the above

Answers

Answer:

none of the above

Explanation:

plen ,side and elevation are the three section views

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