Electrical principle questions

Explain the principle of operation of a single phase transformer

state the meaning of each  the following: i. ohmic conductors, ii. electric power, iii. electrical energy

Differentiate between the following with the following with reference with electrical material i. semiconductor; ii. insulator

Define the term reluctance as used in magnetism

Explain the three losses that occur in a transformer and state how they are minimized

State Kirchhoff’s i. voltage law ii. current law  

distinguish between primary and secondary cells

State three ways in which the capacitance of a capacitor can be varied

Name five quantities that a cathode ray oscilloscope that is capable of measuring

state three other instruments which also measure various quantities. indicate the quantities measured by each.