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AlexFokin [52]
3 years ago
10

A cylindrical resistor of length l is made from a metal of mass m. It has a resistance R.

Physics
1 answer:
Vikentia [17]3 years ago
7 0
C, because it has a parellell cicruit
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A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, typically 2
butalik [34]

Answer:        

Number of turns in secondary will be 7

Explanation:

We have given primary voltage V_p=120volt

Number of turns in the primary is N_p=3575

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We know that \frac{N_p}{N_s}=\frac{V_p}{V_s}

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As the number of turns can not be in decimal so number of turns will be 7

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3 years ago
How much work is done by the force of gravity when a 45 N object falls to the ground from a height of 4.6 m?
saul85 [17]
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How much time is needed to produce 720 Joules of work if 90 watts of power is used?
Tems11 [23]

Answer:

8 seconds

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power (P) is defined as the rate at which work is done.

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by the definition of power,

Power=\frac{work.done}{time.taken} \\ \\ time.taken=\frac{work.done}{power}\\=\frac{720J }{90W} \\ \\ =8 s

3 0
3 years ago
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