Electrical principle questions

Explain the principle of Wheatstone bridge and derive the formula for balance condition

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

Describe the following types of DC motors: i. shunt motor ii. series motor

Define each of the following terms as applied to a.c generation: (i) instantaneous values; (ii) amplitude(4 marks)June/July 2020

State two applications of time constant in RC circuits. (2 marks)June/July 2020

A current of 2.45 A flows through a 39 microFarads capacitor connected across a 50 Hz supply. Detérmine the supply voltage. (3 marks)June/July 2020

State the three basic SI units and their quantities as used in measurements

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

Explain the principle of operation of a single phase transformer

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