Two very long L=94m concentric cylindrical shells of radii a=14cm and b=42 cm carry uniform charges -Q and Q as shown in the figure below. If the electric fieldbetween the shells isE = -2kLrwhere Q=0.9uC, determine the potential difference between the shells; V(b)-V(a)=? Express your answer in units of Volts using zero decimal places. Please do notforget a minus sign if your answer is negative. Take the value of Coulomb constant as k=9x10° N.m2/c². Hint: here the unit vector r is radially outward.b

This problem can be solved using the fact relation between electric field and potential.

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