17. The energy stored in a certain capacitor obeys the formula E = 1/2CV2; where, V is the voltage difference across the leads, and C = 0.16Joules/volt2. What is the formula for dE in terms of V and dV? (5marks) 18. The energy stored in a certain capacitor obeys the formula E = 1/2CV2; where, V is the voltage difference across the leads, and C = 0.16Joules/volt2, the voltage across the leads as 2.5volts,with an error of 10.05volts. What is the energy stored in the capacitor? (5marks) 19. The energy stored in a certain capacitor obeys the formula E = 1/2CV2; where, V is the voltage difference across the leads, and C = 0.16Joules/volt2, the voltage across the leads as 2.5volts,with an error of 10.05volts. What is the estimated error? (5marks)