Basic Electricity 2, WASSCE (PC 2ND), 2018

Question 5

 

  1. State the function of a damping force in measuring instruments.
  2. State two methods by which damping force is achieved in measuring instruments.
  3. State an advantage of a moving-coil measuring instrument over a moving-iron measuring instrument

In the 3-phase star connected system, calculate the;

  1. phase voltage;
  2. line current;

total power.

 

Observation