disp("Part a");
r=10;
i=12;
p=(i^2)*r;
disp("power dissipated in the element (in kW) is"); disp(p/1000);
disp("Part b");
r1=10*10^3;
v1=12;
p1=(v1^2)/r1;
disp("power dissipated in resistor (in mW) is"); disp(p1*10^3);