Physics, 09.06.2021 21:00, DineroLaForeign

One particular lightbulb has a 0.22-meter length of the tungsten wire used as its filament. This tungsten wire filament has a resistance of 19 ohms at a temperature of 20°C. The tungsten wire filament has a resistance of 240 ohms when this bulb is operated at a potential difference of 120 volts. Explain why the resistance of the tungsten wire filament increases when the bulb is being operated compared to the resistance of the filament at 20°C.*

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 13:00, demarcuswiseman

During your summer internship for an aerospace company, you are asked to design a small research rocket. the rocket is to be launched from rest from the earth's surface and is to reach a maximum height of 910 m above the earth's surface. the rocket's engines give the rocket an upward acceleration so it moves with acceleration of 16.0 m/s2 during the time t that they fire. after the engines shut off, the rocket is in free fall. ignore air resistance.

Answers: 1

continue

Physics, 22.06.2019 07:30, carlinryan

Which of the following is an example of motion in two dimensions?

Answers: 3

continue

Physics, 22.06.2019 13:30, brsglover8355

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

Answers: 2

continue

Physics, 22.06.2019 23:40, ttwright24

Which type of energy is transferred by convection currents?

Answers: 2

continue

Do you know the correct answer?

One particular lightbulb has a 0.22-meter length of the tungsten wire used as its filament. This tun...