How much time heater will take to increase the temperature of 100g water by `50^(@)C` if resistance of heating coat is `484Omega` and supply voltage is 220V a.c.

Explanation

To solve the problem of how much time a heater will take to increase the temperature of 100g of water by 50°C, we can follow these steps:

### Step 1: Understand the relationship between heat supplied and heat absorbed
The heat supplied by the heater (Q) will be equal to the heat absorbed by the water. Mathematically, this can be expressed as:
\[ Q = mc\Delta T \]
where:
- \( m \) = mass of water (in kg)
- \( c \) = specific heat capacity of water (approximately \( 4.2 \, \text{kJ/kg°C} \) or \( 4200 \, \text{J/kg°C} \))
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