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3 years ago

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.

1 answer:

8 0

We need to calculate the resistance of a clock which draws current I=0.5A and is connected to a circuit of V=120V. We can find the resistance of a circuit from Ohm's law: I=U/R where I is the current, U is the voltage and R is the resistance. So lets manipulate Ohm's law to find the resistance: R=U/I. Now we input our numbers: R=120V/0.5A and we get R=240 Ohm. So the resistance is R=240 Ohm.

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The answers to the problem are as follows:

MA= 5

IMA= input distance/ output distance, 5

AMA= output force/ input force, 5/2


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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Tc = 0°C = 273 K

TH = 22.5°C = 295.5 K

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Let Energy supplied is E which is equal to the work done

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Use the Carnot's equation

$\frac{Q_{H}}{Q_{c}}=\frac{T_{H}}{T_{c}}$

$Q_{H}=286.24\times 10^{5}\times \frac{295.5}{273}$

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Answer:

I believe the answer is It increases

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