4) A cloud 2km above the ground forms
into rain which collects 0.01m deep over
an area 1 sq. km. Find the potential
energy of the cloud. Given the density of
water is 1000kg/m3, g = 9.8 m/s^2
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a heater rated to 50 watts is connected to 220 volt supply calculate the resistance and the current
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Answer:
1.96×10000000
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