This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
We have to make the current flowing in the internal resistance 0.80 Ω to 1/5 th of the current flowing ie, of 5 A.

When 1 A flows through the internal resistance 0.80 Ω, the remaining 4 Amp current flows through the shunt resistance S.   Their currents are inversely proportional to their resistances, (they are in parallel)

    so      0.80 Ω/ S  =  4 A /1 A  
               S = 0.2 Ω  = shunt resistance
Combined resistance of shunt and internal resistance:  0.8 * 0.2 / (0.8+0.2) = 0.16 Ohms

1 5 1
click on thanks button above please
select best answer