1. Tardigrade
  2. Question
  3. Physics
  4. Consider an electrical conductor connected across a potential difference V. Let Δ q be a small charge moving through it in time Δ t . If I is the electric current through it, (i) the kinetic energy of the charge increases by IV Δ t (ii) the electric potential energy of the charge decreases by IV Δ t. (iii) the thermal energy of the conductor increases by IV Δ t. Then the correct statements is / are

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Q. Consider an electrical conductor connected across a potential difference $V$. Let $\Delta q$ be a small charge moving through it in time $\Delta t .$ If I is the electric current through it,
(i) the kinetic energy of the charge increases by $IV \Delta t$
(ii) the electric potential energy of the charge decreases by IV $\Delta t$.
(iii) the thermal energy of the conductor increases by IV $\Delta t$.
Then the correct statements is / are

KCETKCET 2021Current Electricity

Solution:

As the charges flow from higher to lower potential, its potential energy decreases and increase in kinetic energy is transferred to conductor which increases the thermal energy.