Q3. Consider the three-layer parallel plate electrode system shown in the figure. Thickness, relative dielectric constants and breakdown field stress of each layer are given.
a) Calculate the voltage and electric field strength of each layers.
b) Show whether the system can be breakdown or not by the applied voltage.
c) Calculate the maximum voltage that can be applied to the system without discharge in
any layer of the system.
(Where d1=a1, d2=a2, d3=a3 and Eb1=Ed1, Eb2=Ed2, Eb3=Ed3

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10