An electrical heating coil is immersed in 6.6 kg of water at 22 C. The coil, which
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An electrical heating coil is immersed in 6.6 kg of water at 22 °C. The coil, which has a resistance of 250 Ω, warms the water to 32 °C in 15 min. What is the potential difference at which the coil operates?
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