K.C.S.E Physics Q & A - MODEL 2010PP2QN06
Explain why electric power is transmitted over long distances at high voltages.
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K.C.S.E Physics Q & A - MODEL 2001PP1QN32
A 60W bulb is used continuously for 36 hours. Determine the energy consumed. Give your answer in kilowatt hour (kWh).K.C.S.E Physics Q & A - MODEL 1999PP1QN16
Figure 11 is a graph which shows how the vertical height through which a machine raises a mass 20kg varies with time.
Determine the power output of the machine after 40 seconds.
K.C.S.E Physics Q & A - MODEL 1998PP1QN08
The primary coils of a transformer has 2000 turns and carries a current of 3A. If the secondary coil is designed to carry a current of 30A, calculate the maximum number of turns in the secondary coil.
K.C.S.E Physics Q & A - MODEL 1997PP2QN04
Figure 4 shows a force- distance graph for a car being towed on a horizontal groun
(a) Calculate the total work done
(b) If the velocity just before reaching point D is 0.6ms-1, calculate the power developed by the agent providing the force at this point. (c) An electric pump can raise water from a low level reservoir to the higher – level reservoir at the rate of 3.0 x 105 kg per hour. The vertical height of the water raised 360m. If the rate of energy loss in form of heat is 200KW, determine the efficiency of the pump |
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M.A NyamotiMy passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses
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