Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
It is converted to heat energy and dissipated
B
It remains stored in the capacitor
C
It increases the voltage across the capacitor
D
It is transformed into mechanical energy
Understanding the Answer
Let's break down why this is correct
Answer
When a charged capacitor is connected to a resistor, the electric field in the capacitor collapses as charge flows through the resistor. The stored electrical energy is transferred into the resistor as electrical current, and the resistor converts that current into heat by Joule heating. As the current decreases, the voltage across the capacitor falls, and the energy continues to be dissipated as heat until the capacitor is fully discharged. For example, a 10‑µF capacitor charged to 5 V holds 0. 125 mJ of energy; when connected to a 1 kΩ resistor, that 0.
Detailed Explanation
The electric energy in the capacitor turns into heat when it flows through a resistor. Other options are incorrect because Some think the capacitor still holds the energy after discharge; Discharging never raises the capacitor’s voltage.
Key Concepts
Capacitor Energy Storage and Discharge
Electrical Energy Dissipation
Resistive Heating
Topic
Dielectric Charge Flow
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1When a charged capacitor discharges through a resistor, what occurs regarding the energy stored in the capacitor?
mediumPhysics
Practice
2
Question 2Arrange the following steps in the correct order for discharging a capacitor through a resistor: A) The capacitor is charged, B) The circuit is completed by connecting the resistor, C) The stored energy begins to dissipate, D) The capacitor is fully discharged.
easyPhysics
Practice
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