A fully charged capacitor of capacity C is di | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The energy stored in a fully charged capacitor with capacitance $C$ and initial potential difference $V$ is given by $U = \frac{1}{2}CV^2$.Since t

Vedclass · Accepted Answer

$\sqrt{\frac{2ms \Delta T}{C}}$

Vedclass · Answer

(B) The energy stored in a fully charged capacitor with capacitance $C$ and initial potential difference $V$ is given by $U = \frac{1}{2}CV^2$.Since the capacitor is discharged through a resistance wire in a thermally isolated block,the entire electrical energy stored in the capacitor is converted into heat energy.The heat energy gained by the block is given by $Q = ms \Delta T$,where $m$ is the mass,$s$ is the specific heat,and $\Delta T$ is the rise in temperature.Equating the stored energy to the heat energy: $\frac{1}{2}CV^2 = ms \Delta T$.Solving for $V$: $V^2 = \frac{2ms \Delta T}{C}$.Therefore,$V = \sqrt{\frac{2ms \Delta T}{C}}$.

$A$ fully charged capacitor of capacity $C$ is discharged through a small resistance wire embedded in a solid block of specific heat $s$ and mass $m$ under thermally isolated conditions. If the temperature of the block is raised by $\Delta T$,the initial potential difference across the capacitor is

Similar Questions

For the circuit shown in the figure,the charge on the $4 \mu F$ capacitor is $....... \mu C$.

Show that for a combination of capacitors in series or parallel,the total energy stored is the sum of the energies stored in individual capacitors.

$A$ soap bubble is given a negative charge,then its radius

$512$ identical drops of mercury are charged to a potential of $2 \ V$ each. The drops are joined to form a single drop. The potential of this drop is ......... $V.$

In the given capacitive network,the resultant capacitance between points $A$ and $B$ is: (in $\mu F$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module