The thermal energy supplied to the heater is 14.4 kJ.
The given parameters:
- Resistance of the heater, R = 10 ohms
- Supplied voltage, V = 120 V
- Time of operation, t = 10 s
The thermal energy supplied to the heater is calculated as follows;
P = IVt
where;
- I is the current flowing in the heater
[tex]P = (\frac{V}{R} )Vt\\\\P = \frac{V^2 t}{R} \\\\P = \frac{120^2 \times 10}{10} \\\\P = 14,400 \ J\\\\P = 14.4 \ kJ[/tex]
Thus, the thermal energy supplied to the heater is 14.4 kJ.
The complete question is below:
A heater has a resistance of 10 ohms and operates on 120 V. What is the power of the heater and what thermal energy is supplied by the heater in 10 seconds?
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