I was thinking about an analogy to understand the physical meaning of the term ‘Power’. Let’s take two resistors of same resistance (Say 5 Ω) in two different circuits. First one is the carbon resistor with low power rating and the second one is a wire wound with high power rating. When a DC 5v is applied to the each of them, the current flowing in both the circuits will be 1A. Now, if the voltage is increased in both circuits to 10v, the current is increased to 2A in both the circuits. Say, now at this current, the carbon resistor heats up and catches fire while the wire wound doesn’t (though it heats up very quickly). Does the ‘high power rating’ of a device mean, it’s ability to withstand the heat that was generated due to the highly energised electrons ?