Question

An immersion heater is a small appliance used to heat a cup of water for tea by passing current through a resistor. If the voltage applied to the appliance is doubled, will the time required to heat the water change? By how much? Is this a good idea?

Please show all work. Thanks in advance

Answer 1

# Step-1 Yes, the time required to heat the water will change. thermal electric ene nergy The electric ener energy is converted to energa in the immersion heater, the supplied the water is E=pt Where, energy P = Power t = time, So, the time required ried to heat the water s t E We know, P=vi ☆ [s- ER v2 Then, if the voltage applied to the heater in doubled the time ired to heat the water required will be quartered. ar mb
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a Step-2, No, this is not any device have a specific power and if you increase the voltage voltage you will burn the device. up good idea, because
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