The microwaves in a microwave oven are produced in a special tube called a magnetron. The...
The microwaves in a microwave oven are produced in a special tube called a magnetron. The electrons orbit in a magnetic field of 9.3
Homework Answers
if the maximum diameter is 2.3 cm (the the use of the word
diameter implies a circular orbit, I think), then the max radius is
1.15 cm.
So if
v = 2?r*f
where 2?r is the length of the circumference of the circular orbit
and f is the frequency
so
v = 2?*1.15*10^(-2)*2.6*10^9 = 1.80*10^8 (a little close to the
speed of light for classical mechanics)
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The microwaves in a microwave oven are produced in a special
tube called a magnetron. The...
magnetron. The electrons orbit in a 5. (20pts) The microwaves in a microwave oven are produced...
magnetron. The electrons orbit in a 5. (20pts) The microwaves in a microwave oven are produced in a magnetron. The electrons magnetic field at a frequency of 2.4GHz (2.4x10^9 Hz) and as they do so they emit 2.40 electromagnetic radiation (light). What is the strength of the magnetic field? Hint: Assume the electrons move in a circle of radius R (the radius will cancel out in the end). Compare your result Earth's magnetic field.
1. In the magnetotron of a microwave oven, the microwaves are produced by having electrons orbit...
1. In the magnetotron of a microwave oven, the microwaves are produced by having electrons orbit in a magnetic field. (When the electrons do this, they emit electromagnetic waves which we will study in a few weeks). Calculate the strength of the magnetic field that causes electrons to orbit with a frequency of 2.4 GHz
A microwave oven cooks food with microwaves of wavelength 14.9 cm. What is the frequency of these microwaves?
A microwave oven cooks food with microwaves of wavelength 14.9 cm. What is the frequency of these microwaves?
Hi, can you help me with solving Part B? I provided part A because I think...
Hi, can you help me with solving Part B? I provided part A because I think you need the answer for it to get part B. In a microwave oven, electrons describe circular motion in a magnetic field within a special tube called a magnetron; as you'll learn in Chapter 29, the electrons' motion results in the production of micowaves. The electrons circle at a frequency of 2.25 GHz . The magnetron can accommodate electron orbits with maximum diameter 2.72 mm...
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A microwave oven cooks food with microwaves of wavelength 11.8 cm. What is the frequency of...
A microwave oven cooks food with microwaves of wavelength 11.8 cm. What is the frequency of these microwaves?
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
w standing electromagnetic wave in a 610 W microwave oven. The oven has a length of...
w standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 0.21 m and a square cross-section of side w = 0.40 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and go to zero at the sides. The electric field reaches its peak magnitude on the cross-sectional area, A. Take the...
The figure shows a standing electromagnetic wave in a 610 W microwave oven. The oven has...
The figure shows a standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 1 = 0.21 m and a square cross-section of side w = 0.70 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and B go to zero at the sides. The electric field reaches its peak magnitude on...
On its highest power setting, a microwave oven increases the temperature of 0.410 kg of spaghetti...
On its highest power setting, a microwave oven increases the temperature of 0.410 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 103 /(kg.)? w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 16.0 cm in diameter. W/m2 (c) What is the peak electric field strength of the microwave...
magnetron. The electrons orbit in a 5. (20pts) The microwaves in a microwave oven are produced in a magnetron. The electrons magnetic field at a frequency of 2.4GHz (2.4x10^9 Hz) and as they do so they emit 2.40 electromagnetic radiation (light). What is the strength of the magnetic field? Hint: Assume the electrons move in a circle of radius R (the radius will cancel out in the end). Compare your result Earth's magnetic field.
1. In the magnetotron of a microwave oven, the microwaves are produced by having electrons orbit in a magnetic field. (When the electrons do this, they emit electromagnetic waves which we will study in a few weeks). Calculate the strength of the magnetic field that causes electrons to orbit with a frequency of 2.4 GHz
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
w standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 0.21 m and a square cross-section of side w = 0.40 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and go to zero at the sides. The electric field reaches its peak magnitude on the cross-sectional area, A. Take the...
The figure shows a standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 1 = 0.21 m and a square cross-section of side w = 0.70 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and B go to zero at the sides. The electric field reaches its peak magnitude on...
On its highest power setting, a microwave oven increases the temperature of 0.410 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 103 /(kg.)? w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 16.0 cm in diameter. W/m2 (c) What is the peak electric field strength of the microwave...
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