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Naddika [18.5K]
3 years ago
8

An alternating current is supplied to an electronic component with a rating that the voltage across it can never, even for an in

stant, exceed 16 V. What is the highest rms voltage that can be supplied to this component while staying below the voltage limit?
A)8 sqrt 2 V

B) 16 sqrt 2 V

C) 256 V

D) 8
Physics
1 answer:
Vsevolod [243]3 years ago
7 0

Answer:

A) V_{rms}=8\sqrt{2} V

Explanation:

Maximum voltage =V_{max}=16 V

Maximum voltage and rms voltage are related to each other by

V_{max}=V_{rms} \times \sqrt{2} \\V_{rms}=\frac{V_{max}}{ \sqrt{2}}\\V_{rms}=\frac{16}{\sqrt{2}} \\V_{rms}=8\sqrt{2} V

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Answer:

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b) Final angular speed = 70 rad/s        

Explanation:

a) We have equation of motion s = ut + 0.5at²

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b) We have equation of motion v = u + at

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3 years ago
The current in a hair dryer measures 15 amps. The resistance of the hair dryer is 14 ohms. What is the voltage?
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Answer:

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7.4              {}                    72.569

9                {}                     89.241

10.4              {}                   101.989

10.9              {}                  106.892

From the table, it can be seen that there is a nearly linear relationship between the  amount of Newtons and the  mass, as the slope of the data has a relatively constant slope

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Where;

g is the constant of proportionality

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The graph of the data is created with Microsoft Excel give the slope which is the constant of proportionality, g = 9.8379, which is the acceleration due to gravity g ≈ 9.8 m/s²

We therefore label the y-axis as W in Newtons (kg·m/s²)

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