4 years ago

Please help with any of them!!!!!!

Physics

1 answer:

Law Incorporation [45]4 years ago

5 0

Its to blury for me to see it

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The resistanceless inductor is connected across the ac source whose voltage amplitude is 24.5 V and angular frequency is 850 rad

timurjin [86]

Answer:

Part A 2.88 A, PART B 28.82 mA PART C 0.288 mA

Explanation:

We have given angular frequency $\omega =850rad/sec$

Voltage source has an amplitude of 24.5 V, So V= 24.5 volt

Part A

We have given inductance $L=10^{-2}H$

So inductive reactance $X_L=\omega L=850\times 10^{-2}=8.5ohm$

So current $i=\frac{V}{X_L}=\frac{24.5}{8.5}=2.8823A$

Part B

We have given inductance $L=1 H$

So inductive reactance $X_L=\omega L=850\times 1=850ohm$

So current $i=\frac{V}{X_L}=\frac{24.5}{850}=28.82mA$

Part C

We have given inductance $L=100 H$

So inductive reactance $X_L=\omega L=850\times 100=85000ohm$

So current $i=\frac{V}{X_L}=\frac{24.5}{85000}=0.288mA$

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3 years ago

What happens to an electromagnetic wave when the frequency is doubled?

Artist 52 [7]

The product of (frequency) times (wavelength) is always
the same number (the speed of the wave).

So if the frequency is doubled, the wavelength has to drop to
half of what it was, in order to keep their product constant.

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4 years ago

A newton meter is a measuee of work also known as the what

Sladkaya [172]

The "newton-meter" that is a unit of work or energy
is identical to the Joule.

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4 years ago

What is the answer to this

umka2103 [35]

It’s the atomic mass

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3 years ago

Scientists studying bull sperm whales off the coast of South Africa have calculated that these mammals can descend to depths of

Zarrin [17]

Answer:

3,00,000

Explanation:

because 1 m =100m so, 3000x100=300000

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4 years ago

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