If the reading of ammeter `A_(1)`in figure is 2.4 A, what will the ammeter `A_(2) and A_(3)`read? Neglect the resistances of the ammeter.

Answer

(a) 1A,
(b) `4 Omega" "I_(3)=(V(R_(x)-R))/((2R_(0)+3R)R_(x)+R_(0)(R_(0)+2R))`
`(##RES_PHY_CE_E03_065_A01##)`
The graph of the function is a hyperbola. Its special points are : at `R_(x)=0I_(3)=-3.8A;` at `R_(x) ; = 4I_(3)=0;` at `R_(x)=32Omega I_(3)=1A ; ` If `R_(x)to oo, I_(3)" tends to 19/16=1.1875 A"`.