The figure shows an experimental plot for dis | vedclass

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

Question

(A) The equation for the discharging of a capacitor is given by $V = V_{0} e^{-t/	au}$,where $	au = RC$ is the time constant.At $t = 	au$,the poten

Vedclass · Accepted Answer

$100\; sec$ and $150\; sec$

Vedclass · Answer

(A) The equation for the discharging of a capacitor is given by $V = V_{0} e^{-t/	au}$,where $	au = RC$ is the time constant.At $t = 	au$,the potential difference becomes $V = V_{0} / e \approx 0.37 V_{0}$.From the graph,the initial potential difference $V_{0} = 25\; V$.Therefore,at $t = 	au$,$V = 0.37 	imes 25\; V = 9.25\; V$.Looking at the graph,at $t = 100\; sec$,the potential is slightly above $10\; V$,and at $t = 150\; sec$,the potential is slightly below $10\; V$ (specifically around $8\; V$ to $9\; V$).Since $9.25\; V$ corresponds to the time constant $	au$,and this value lies between $100\; sec$ and $150\; sec$ on the time axis,the correct range is $100\; sec$ and $150\; sec$.

The figure shows an experimental plot for discharging of a capacitor in an $R-C$ circuit. The time constant $\tau$ of this circuit lies between

Similar Questions

In the given figure,the resistance of the coil of the galvanometer $G$ is $2\,\Omega$. The emf of the cell is $4\,V$. The ratio of the potential difference across $C_1$ and $C_2$ is:

An electric bulb,a capacitor,a battery,and a switch are all connected in series in a circuit. How does the intensity of light vary when the switch is turned on?

In the circuit shown,the cells are ideal and of equal emfs $E$. The capacitance of the capacitor is $C$ and the resistance of the resistor is $R$. $X$ is first joined to $Y$ and then to $Z$. After a long time,the total heat produced in the resistor will be:

When a lamp is connected in series with a capacitor,then:

Two identical capacitors $A$ and $B$ are charged to the same potential $V$ and are connected in two circuits at $t = 0,$ as shown in the figure. The charge on the capacitors at time $t = CR$ are respectively:

Vedclass Test Series

Exam Paper Generator

Online Exam Module