Physics Past Questions and Answers

fig above represents the main sequence of energy conversion at kainji dam. what is the efficiency of the system?

In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is

Which of the following are the correct SI units of the quantities indicated? i.N(Force) II. Mn<sup style='font-size: smaller;'>-1</sup> (Torque) iii. watt(Power) iv. kgms<sup style='font-size: smaller;'>-2</sup>

A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point T. What is the total displacement?

Two forces whose resultant is 100N, are at right angle to each other. If one of them makes an angle 30<sup style='font-size: smaller;'>o</sup> with the resultant, determine its magnitude.