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3 years ago

Please help,,, question on image

Physics

1 answer:

MA_775_DIABLO [31]3 years ago

3 0

Answer:

first you have to

Explanation:

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HELP MEEEEE!!!!!!!!!!A student make a drawing of an aluminum atom.Which of these should the student show in the nucleus of the a

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I would say B. Neutrons

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4 years ago

Write a hypothesis about the effect of the wavelength on the diffraction angle. Use the "if . . . then . . . because . . ." form

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4 years ago

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Two objects are raised off the ground and one of them is three times as high as the other one. How do their potential energy com

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4 years ago

Why does a typhoon hit a location twice?

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3 years ago

ichrome wire of cross-sectional radius 0.791 mm is to be used in winding a heating coil. If the coil must carry a current of 9.2

77julia77 [94]

Answer:

length is 23.228091 m

Explanation:

Given data

radius = 0.791 mm = 0.791 × $10^{-3}$ m

current = 9.25 A

voltage = 1.20 × 10² V

to find out

resistance and length of wire

solution

we know the resistance formula that is

resistance = voltage / current

resistance = 1.20 × 10² /9.25

resistance = 12.97

so resistance is 12.97 ohm

and length of nichrome wire formula is

length = resistance × area / specific resistance of wire

so specific resistance of wire we know = 1.1 × $10^{-6}$

and area = $\pi$ × r² = $\pi$ × (0.0791× $10^{-3}$ )²

area = 1.97 × $10^{-6}$

length = 12.97 × 1.97 × $10^{-6}$ / 1.1 × $10^{-6}$

so length is 23.228091 m

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3 years ago