A Piezoelectric material with d=250x10mV and e,= 1000 is in the form of a cylinder of length and diameter 10 mm and 3 mm respectively. Calculate the force to generate spark in the air gap of breakdown voltage 3.5 kV. (a) 85.0 N (b) 87.6 N (c) 90.0 N (d) 80.5 N The inertia tensor of a system is given as follows: 1 II => 6 1 161625 1625 1 6 Find the moment of inertia of the system about an axis which is in the direction 1 1 5 5 5 8 (d) OOO CRUISERS SU 30