Physics - Capacitor Question with Solution | TestHub
The circuit involves two ideal cells connected to a 1 mF capacitor via a key K . Initially the key K is in position 1 and the capacitor is charged fully by 2 V cell. The key is pushed to position 2 . Column-I gives physical quantities involving the circuit after the key is pushed from position 1. Column-II gives corresponding results. Match the statements in Column-I with the corresponding values in Column-II and indicate your answer by darkening appropriate bubbles in the matrix given in the OMR.
Column I | Column II |
|---|---|
(A) The net charge crossing the 4 volt cell in C is | (p) 2 |
(B) The magnitude of work done by 4 Volt cell in J is | (q) 6 |
(C) The gain in potential energy of capacitor in J is | (r) 8 |
(D) The net heat produced in circuit in J is | (s) 16 |
Options:
Answer:
Solution:
The initial charge on capacitor
The final charge on capacitor
∴ Net charge crossing the cell of emf 4 V is
The magnitude of work done by cell of emf 4 V is
The gain in potential energy of capacitor is
Net heat produced in circuit is
