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Ymorist [56]
3 years ago
8

What are three objects in a home that produce electromagnetic waves?

Physics
2 answers:
Novay_Z [31]3 years ago
6 0
In the kitchen. micro-wave ovens: they use the heating properties of radiofrequencies: water molecules in the food are reheated by absorbing the energy generated by very powerful radiation in a confined space. induction hobs: they function using medium frequency magnetic fields that produce the heat needed for cooking.
Alexxx [7]3 years ago
3 0

Answer:

Electromagnetic waves are combinations of electromagnetic fields.

Now, an example of electromagnetic waves is the range of visible light, so for example, when your tv emits light or images, these are actually electromagnetic waves.

The same example is for infrared waves (the used in old remote controls to change of channel or things like that)

Also, all the lightbulbs emit electromagnetic waves in the form of light.

Another example can be the microwave oven, which uses microwaves to heat food (microwaves are waves with a frequency a little bit smaller than the infrared light)

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According to Newton's Second Law of Motion :    

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3 years ago
An electron moving at right angles to a 0.1 T magnetic field experiences an acceleration of 6 × 1015 m.s-2. What is the speed of
GaryK [48]

Explanation:

It is given that,

Magnetic field, B = 0.1 T

Acceleration, a=6\times 10^{15}\ m/s^2

Charge on electron, q=1.6\times 10^{-19}\ C    

Mass of electron, m=9.1\times 10^{-31}\ kg    

(a) The force acting on the electron when it is accelerated is, F = ma

The force acting on the electron when it is in magnetic field, F=qvB\ sin\theta

Here, \theta=90

So, ma=qvB

Where

v is the velocity of the electron

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v=\dfrac{ma}{qB}

v=\dfrac{9.1\times 10^{-31}\ kg\times 6\times 10^{15}\ m/s^2}{1.6\times 10^{-19}\ C\times 0.1\ T}

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or

v=3.41\times 10^5\ m/s

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