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lilavasa [31]
3 years ago
8

Many students use earbuds or headphones while working on a computer or listening to music. Electromagnetics are within the liste

ning devices. Explain how they work / their function.
Physics
1 answer:
Katyanochek1 [597]3 years ago
8 0

Answer:

When the electrical current passes through the conductors, the polarity is changed, and the diaphragm interacts with the permanent magnets, vibrating and creating sound.

Explanation:

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sergey [27]

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Explanation:

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5 0
4 years ago
1. What is the equivalent resistance<br> 2. What is the current<br> 3. What is the power
tiny-mole [99]

Answer:

2

Explanation:

6 0
4 years ago
A wheelchair moves upward on a 7.1 degree ramp at a speed of 20km/h what is the horizontal velocity
Charra [1.4K]

Answer:

If the wheelchair is up 7.1 ft. In hight the time of flight should be 0.664 seconds and the distance should be 12.108 ft.

Explanation: I divided the displacement by the time and I used the equation Vx = 20 km/m

6 0
3 years ago
the wattage ratting of a light bulb is the power it sonsumers when it is connected accross a 120 V potential difference what is
igor_vitrenko [27]

Answer:

240 Ω

Explanation:

Resistance: This can be defined as the opposition to the flow of current in an electric field. The S.I unit of resistance is ohms (Ω).

The expression for resistance power and voltage is give as,

P = V²/R.......................... Equation 1

Where P = Power, V = Voltage, R = Resistance

Making R the subject of the equation,

R = V²/P.................... Equation 2

Given: V = 120 V, P = 60 W.

Substitute into equation 2

R = 120²/60

R = 240 Ω

Hence the resistance of the bulb = 240 Ω

8 0
3 years ago
A major benefit of the daguerreotype process is that ________.
tigry1 [53]

Daguerreotype is defined as the first practical photographic process which was introduced in Paris on January 7, 1839. To make the image permanent, Daguerre used salt solution. The result of his introduced process is a finely defined image with surface which is delicate. The major benefit of daguerreotype is if the images are correctly preserved, the pictures could last forever. Aside from this, since it produces superior quality of outline, it is thus suitable for portraitures. 

7 0
3 years ago
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