A well-insulated electric water heater warms 131 kg of water from 20 °C to 43 °C in 30 minutes. Find the resistance of its heating element, which is connected across a 240 V potential difference. The specific heat of water is 4186 /(kg °C). R-
A well-insulated electric water heater warms 131 kg of water from 20 °C to 43 °C in 30 minutes. Find the resistance of its heating element, which is connected across a 240 V potential difference. The specific heat of water is 4186 /(kg °C). R-
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Transcribed Image Text:A well-insulated electric water heater warms 131 kg of water from 20 °C to 43 °C in 30 minutes. Find the resistance of its heating element, which is
connected across a 240 V potential difference. The specific heat of water is 4186 3/(kg °C).
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