A coil of 10H stores energy 80J when current 4A flows through it. What is the energy stored if the current decreased to 2A? (a). 20J
(b). 40J
(c). 10J
(d). 25J

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

Observations show that interstellar clouds can have almost any shape and

Name two kinds of practical electric pumps.