Answer:
The values of the two resistors are 48 ohms and 12 ohms.
Explanation:
Power (P) = Voltage^2 (V^2) ÷ Resistance (R)
R = V^2 ÷ P
The minimum power drawn by the heater is 300 watts
Voltage is 120 V
R = 120^2 ÷ 300 = 14,400÷300 = 48 ohms
The maximum power drawn by the heater is 1200 watts
R = 120^2 ÷ 1200 = 14,400 ÷ 1200 = 12 ohms
