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Arlecino [84]
3 years ago
8

A cell has an emf of 1.5 V and an internal resistance of 0.65 Q.

Physics
1 answer:
weeeeeb [17]3 years ago
5 0

Answer:

14000 J / 0.40 J/s = 35 000 s or about 9.75 hrs

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Which of the following actions will increase the current induced in a wire by a<br> magnetic field?
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Explanation:

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20. A mass of gas has a volume of 4 m3, a temperature of 290 K, and an absolute pressure of 475 kPa. When the gas is allowed to
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A strip of copper 190 µm thick and 4.20 mm wide is placed in a uniform magnetic field of magnitude B = 0.78 T, that is perpendic
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Answer:

V = 9.682 × 10^(-6) V

Explanation:

Given data

thick = 190 µm

wide = 4.20 mm

magnitude B = 0.78 T

current  i = 32 A

to find out

Calculate V

solution

we know v formula that is

V = magnitude× current / (no of charge carriers ×thickness × e

here we know that number of charge carriers/unit volume for copper = 8.47 x 10^28 electrons/m³

so put all value we get

V = magnitude× current / (no of charge carriers ×thickness × e

V = 0.78 × 32 / (8.47 x 10^28  × 190 × 1.602 x 10^(-19)

V = 9.682 × 10^(-6) V

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Because pH can unballence the are it is not good for are health

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3 years ago
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