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CBSE Class 10 Answered

numerical..123213715436924137459128678574512476704
Asked by | 23 Jan, 2010, 06:13: PM
answered-by-expert Expert Answer

Dear Student

Power (wattage) P= i2R = V2/R  ===> R= V2/P   -----(1)

R1=202/100 =4   ohm

R2= 2202/25 =  1936 ohm

Effective resestance of teh circuit  R= R1R2/(R1+R2)  -----(2)

R=7744/1940 = 3.992  ohm

Total current  I=  I1+I2 =  V/R= 220/3.992 =55.11 A

I1= V/R1=  220/4  =55 A

I2= V/R2=220/1936= 0.11

Regards

Team

Topperlearning

Answered by | 23 Jan, 2010, 06:35: PM

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