Student Login

Home›Chapters›Capacitors PYQs›Charge Sharing & Loss of Energy›Question 33

NEET 2017 · Charge Sharing & Loss of Energy

Charge Sharing & Loss of Energy question from NEET 2017

Q33NEET 2017Easy

Charge Sharing & Loss of Energy

A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system

Show answer and solution

Answer: (a)

Charge $Q$ is shared, capacitance doubles to $2C$ .
$U_f = \frac{Q^2}{2(2C)} = \frac{1}{2} \cdot \frac{Q^2}{2C} = \frac{U_i}{2}$
So the answer is (a): energy decreases by a factor of 2.

Report a mistake

More questions on Charge Sharing & Loss of Energy

A capacitor of 2 μ F is charged as shown in the diagram. When the switch S is turned to…NEET 2016 (Phase 1)
Two capacitors C₁ and C₂ are charged to 120 V and 200 V respectively. It is found that…JEE Main 2013
A capacitor of capacity C1 charged upto V volt and then connected to an uncharged…NEET 2002 (AIPMT)
A capacitor is charged with a battery and energy stored is U. After disconnecting battery…NEET 2000 (AIPMT)
A capacitor of 20 μ F is charged up to 500 V is connected in parallel with another…MHT CET 2026 (14 May, Shift 2)
A condenser of capacity C₁ is charged to potential V₁ and then disconnected. Uncharged…MHT CET 2026 (13 Apr, Shift 1)
A capacitor P with capacitance 10 × 10⁻⁶ F is fully charged with a potential difference…JEE Main 2026 (22 Jan, Shift 2)
Consider two uncharged capacitors of equal capacitance 200 pF. One of them is charged by…NEET 2026