Physics Past Questions and Answers

In homes, electrical appliances and lamps are connected in parallel because

An object moves in a circular path of radius 0.5m with a speed of 1ms\(^{-1}\). What is its angular velocity?

What effort will a machine of efficiency 90% apply to a load of 180N if its efforts arm is twice as long as its load arm?

Calculate the effective capacitance of the circuit in the diagram given

Which of the following diagrams represents correctly an n-p-n transistor?

i.

ii.

iii.