NEET Physics MCQ: NCERT Capacitance

Two identical capacitors are charged individually to voltages $V_1$ and $V_2$ . They are then connected in parallel with plates of like polarity joined together. After the system comes to equilibrium, what is the electrostatic energy stored in the system?

$\frac{C}{4}(V_1+V_2)^2$

$\frac{C}{4}(V_1-V_2)^2$

$\frac{C}{2}(V_1^2+V_2^2)$

$C(V_1+V_2)^2$

Question Tags

📚 Subject:Physics

📑 Chapter:Electrostatic Potential And Capacitance

🎯Topic:Capacitance

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :Capacitance, Energy stored in capacitors, Parallel combination of capacitors, Charge conservation

Related Questions

A parallel plate capacitor with capacitance C is charged to a potential V. It is then disconnected from the battery and the distance between the plates is doubled. What happens to the energy stored in the capacitor?

Halves

Doubles

Remains the same

Quadruples

Question Tags

📚 Subject:Physics

📑 Chapter:Electrostatic Potential And Capacitance

🎯Topic:Capacitance

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Capacitance, Energy stored in capacitors, Parallel plate capacitor

A capacitor of capacitance C is charged to a potential difference V and then connected across an uncharged capacitor of capacitance 2C. When the system reaches equilibrium, what is the total electrostatic energy stored in the system?

(1/2)CV^2

(1/3)CV^2

(1/6)CV^2

(2/3)CV^2

Question Tags

📚 Subject:Physics

📑 Chapter:Electrostatic Potential And Capacitance

🎯Topic:Capacitance

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :Capacitance, Energy stored in capacitors, Charge conservation