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+//Finding charge and energy
+//Example 5.3(pg 194)
+clc
+clear
+//Before immersion of oil
+C=0.005*(10^-6)
+V=500
+q=C*V
+E=(1/2)*(C*V*V)
+printf('Charge of condenser is %e coulomb \n',q)
+printf('Energy stored in condenser before immersion of oil is %e Joules \n',E)
+
+//After immersion of oil
+K=2.5
+q1=q// since no loss of charge
+C1=K*C//capacity of condenser
+E1=(q1^2)/(2*C1)// energy stored in condenser
+printf('Energy stored in condenser after immersion of oil is %e Joules',E1)