The thermal energy (heat) developed in a resistor is given by Joule's Law of Heating: H = I²Rt, where I is the current, R is the resistance, and t is the time the current flows. Since the current (I) and time (t) are the same for both resistors in series, the heat developed is directly proportional to the resistance (H ∝ R).
Two resistors R and 2R are connected in series in an electric circuit. The thermal energy developed in R and 2R are in the ratio
Asked in WBCS Main Paper 4 2021 · Topic: Electric Current (Electrical Power and Energy, Joule heating effect)
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