K.C.S.E Physics Q & A - MODEL 2009PP2QN15 - ATIKA SCHOOL

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K.C.S.E Physics Q & A - MODEL 2009PP2QN15

17/7/2020

K.C.S.E Physics Q & A - MODEL 2009PP2QN15

Figure 9 shows the graph of the relationship between current I and potential difference V for two trungsten filament lamps X and Y. The normal working voltages for the lamp X and lamp Y are 2.5V and 3.0V respectively.

(b) Determine the resistance of lamp X at the normal working voltage
(c) The lamps are now connected in a series circuit in which a current of 0.4 A flows. Find the potential differences across lamp Y
(d) Determine the power at which lamp Y operates under normal working voltage

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Introduction to Physics (4 Lessons)
Measurements 1 (12 Lessons)
Force (16 Lessons)
Pressure (24 Lessons)
Particulate Nature of Matter (12 Lessons)
Thermal Expansion (12 Lessons)
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Electrostatics (12 Lessons)
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Magnetism (12 Lessons)
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Turning Effect of Force (10 Lessons)
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Waves II(10 Lessons)
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Thin Lenses (20 Lessons)
Uniform Circular Motion (10 Lessons)
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