(B) At the instant the key is closed $(t = 0)$,the capacitor is uncharged.An uncharged capacitor acts as a short circuit (zero resistance) at the init

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

(B) At the instant the key is closed $(t = 0)$,the capacitor is uncharged.An uncharged capacitor acts as a short circuit (zero resistance) at the initial instant.Therefore,the current in the circuit is maximum,given by $I = V/R$.Since the capacitor is uncharged,the charge $Q$ on the plates is zero (minimum).The potential difference across the capacitor is $V_c = Q/C = 0$ (minimum).Thus,statements $B, C,$ and $D$ are correct.Therefore,the correct option is $B$.

Class 12 Physics Electric Potential and Capacitance Charging and Discharging of Capacitance and RC circuit (DC)

Medium

Identify the valid statements relevant to the given circuit at the instant when the key is closed.
$A.$ There will be no current through resistor $R.$
$B.$ There will be maximum current in the connecting wires.
$C.$ Potential difference between the capacitor plates $A$ and $B$ is minimum.
$D.$ Charge on the capacitor plates is minimum.
Choose the correct answer from the options given below $:$

JEE MAIN 2025 All JEE MAIN

A
$C, D$ only
B
$B, C, D$ only
C
$A, C$ only
D
$A, B, D$ only

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Physics Questions

Chapter

Electric Potential and Capacitance

Subtopic

Charging and Discharging of Capacitance and RC circuit (DC)

Previous Year

JEE MAIN 2025 Paper All JEE MAIN years →

The switch in the circuit shifts from $1$ to $2$ when $V_C > 2V/3$ and goes back to $1$ from $2$ when $V_C < V/3$. The voltmeter reads the voltage as plotted. What is the period $T$ of the waveform in terms of $R$ and $C$?

View Solution

In a $RC$ circuit, where $R$ is resistance and $C$ is capacitance, which of the following has the dimension of time?

EasyTS EAMCET 2022

View Solution

For the given input voltage waveform $V_{\text{in}}(t)$,the output voltage waveform $V_0(t)$ across the capacitor is correctly depicted by:

DifficultJEE MAIN 2020

View Solution

$A$ $2500 \,\mu F$ capacitor is charged through a $1 \,k\Omega$ resistor by a $12 \,V$ d.c. source. The voltage across the capacitor after $5 \,s$ is ..... $V$.

Medium

View Solution

In the circuit diagram shown,$E = 5 \, V, r = 1 \, \Omega, R_2 = 4 \, \Omega, R_1 = R_3 = 1 \, \Omega$ and $C = 3 \, \mu F$. The magnitude of the charge on each capacitor plate is......$\mu C$.

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

Similar Questions

The switch in the circuit shifts from $1$ to $2$ when $V_C > 2V/3$ and goes back to $1$ from $2$ when $V_C < V/3$. The voltmeter reads the voltage as plotted. What is the period $T$ of the waveform in terms of $R$ and $C$?

In a $RC$ circuit, where $R$ is resistance and $C$ is capacitance, which of the following has the dimension of time?

For the given input voltage waveform $V_{\text{in}}(t)$,the output voltage waveform $V_0(t)$ across the capacitor is correctly depicted by:

$A$ $2500 \,\mu F$ capacitor is charged through a $1 \,k\Omega$ resistor by a $12 \,V$ d.c. source. The voltage across the capacitor after $5 \,s$ is ..... $V$.

In the circuit diagram shown,$E = 5 \, V, r = 1 \, \Omega, R_2 = 4 \, \Omega, R_1 = R_3 = 1 \, \Omega$ and $C = 3 \, \mu F$. The magnitude of the charge on each capacitor plate is......$\mu C$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module