11. A load of 20N on a wire of cross-sectional area 8 x 10"m”, produces an extension of 104m. m. Calculate Young's Modulus for the material of the wire if its length is 3m. 4. 7.0 x 10''Nm2 B. 7.5 x 10''Nm2 C. 8.5 x 10''Nm2 D. 9.0 x 10''Nm-2 y 10l-2 YA​

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?