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K.C.S.E Physics Q & A - MODEL 2018PP2QN12
State the purpose of manganese(IV) oxide in a dry cell
answer
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K.C.S.E Physics Q & A - MODEL 2017PP2QN04
State what is meant by polarisation in simple cells.
answer
K.C.S.E Physics Q & A - MODEL 2016PP2QN07
​Figure 5 shows the cross-section of a dry cell. Use the information on the figure to answer questions below
​(a) Name the parts labeled A and B.
(b) State the use of manganese (IV) oxide in the cell.
answers
​(a) A – Carbon rod or graphite rod
B – Mixture of Manganese (IV) oxide with carbon powder (b) Manganese (IV) oxide is a depolarizer or oxidizing agent. It is used to oxidize hydrogen to water
K.C.S.E Physics Q & A - MODEL 2015PP2QN03
State the reason for topping up a lead - acid accumulator with distilled water.
answer
K.C.S.E Physics Q & A - MODEL 2012PP2QN03
​Figure 3, shows four identical light bulbs connected to a 15 volts battery whose internal resistance is negligible.
​Determine the reading of the voltmeter V.
answer
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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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