Q. 45.0( 1 Vote )
Apply the first l
Answer :
First law of thermodynamics states –
the total energy of an isolated system is constant, energy can neither created nor destroyed, but can be transformed from one form to another
where
ΔU is the change in the internal energy,
∆Q is the heat added to the system,
and ∆W is the work done by the system.
Now, here the battery is doing positive work on a resistor carrying current i.
Thus, ∆W is positive.
The work done on the resistor is used to increase its thermal energy in the form of heat, thus ∆Q is positive.
As the temperature of the resistor rises, ΔU is positive.
Rate this question :


An electric bulb
HC Verma - Concepts of Physics Part 2A servo voltage s
HC Verma - Concepts of Physics Part 2Figure shows an e
HC Verma - Concepts of Physics Part 2Find the charge r
HC Verma - Concepts of Physics Part 2Find the thermo-e
HC Verma - Concepts of Physics Part 2The 2.0 Ω resisto
HC Verma - Concepts of Physics Part 2An immersion heat
HC Verma - Concepts of Physics Part 2An electric bulb,
HC Verma - Concepts of Physics Part 2A coil of resista
HC Verma - Concepts of Physics Part 2When a current pa
HC Verma - Concepts of Physics Part 2