Question

calculate the amount of work done to draw a current of 8
ampere from hundred volt to 120 volt into seconds​

Answer 1

Answer:

320J

Explanation:

Current = 8A

Lower potential, V1 = 100V

Higher potential, V2 = 120V

Voltage= potential difference = V2-V1= 120 - 100 = 20V

Time = 2s

Power = Current x Voltage

Power = Work/Time

Work = Power x Time

         = Current x Voltage x Time

         = 8 x 20 x 2

         = 320J

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Answer 2

Answer:

●final potential - initial potential = work done / charge

》thus , charge = current × time = 16

》net potential = 20 v

●work done from the above formulae is ,

》20 ×16 = work done

》320 joule = work done

●Final Potential - Initial potential  =  work done/charge

》charge=current * time

》V=120-100=20

》work done=20*16=320J

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