Assertion - Heater wire must have High resistance and high melting point
Reason - heating element of electric heater made of nichrome
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Heater wire must have high resistance and high melting point, because in series current remains same, therefore according to Joule's law H=I
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Rt, heat produced is high if R is high. Melting point must be high, so that wire may not melt with increase in temperature.
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