Due to cold weather a 1 m water F cross-sectional area 1 cm² is filled with -10°C. Resistive heating is used to melt Current of 0.5 A is passed through 4 k res Assuming that all the heat produced is u melting what is the minimum time required
Due to cold weather a 1 m water F cross-sectional area 1 cm² is filled with -10°C. Resistive heating is used to melt Current of 0.5 A is passed through 4 k res Assuming that all the heat produced is u melting what is the minimum time required
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Transcribed Image Text:Due to cold weather a 1 m water pipe of
cross-sectional area 1 cm² is filled with ice at
-10°C. Resistive heating is used to melt the ice.
Current of 0.5 A is passed through 4 k resistance.
Assuming that all the heat produced is used for
melting, what is the minimum time required ?
(Given latent heat of fusion for water/ice
= 3.33 × 10³ J kg-¹, specific heat of ice = 2 × 10³ J
kg¹ and density of ice = 10³ kg / m³
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