1. Given f,p calculate Ns 2. Given V, I in rectangular form calculate S, P, Q 3. 1+a+a2=0 and symmetrical forms what is a, a2 4. Given Va, Vb, Vc calculate +ve, -ve and zero sequence voltages 5. I f= ... calculate zero sequence current and related questions 6. time constant of, RL, RC circuits 7. Secondary impedance of transmission line. given CTR, PTR, Zline. Calculate Zrelay 8. Resistance of transformer with respect to the primary when primary and secondary voltage is given 9. Given V L... calculate Vab or vice versa 10. Truth tables XOR etc

Differential equations on RL and RC circuits. Fundamentals of power system and digital signal processing.