Three capacitors A,B and C are connected with battery emf , . All… - Vidyadip

MCQ

Three capacitors $A,B$ and $C$ are connected with battery $emf\, \varepsilon $. All capacitors are identical initially. If dielectric slab is inserted between plates of capacitor $A$ slowy with help of external force then

A
Chemical energy of battery remains unchanged
B
Positive work is done on the given system by external force
C
Force between plates of capacitor $C$ decreases
✓
Magnitude of change of charge on $B$ and $C$ is same

✓

Answer

Correct option: D.

Magnitude of change of charge on $B$ and $C$ is same

d

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

$List I$ contains four combinations of two lenses ($1$ and $2$) whose focal lengths (in $cm$ ) are indicated in the figures. In all cases, the object is placed $20 cm$ from the first lens on the left, and the distance between the two lenses is $5 cm$. $List II$ contains the positions of the final images.

Which one of the following options is correct?

Three capacitors $2,\, 3$ and $6\ \mu F$ are joined in series with each other. What is the minimum effective capacitance......$\mu \,F$

A bob of mass $10\, kg$ is attached to wire $0.3\, m$ long. Its breaking stress is $4.8 \times 10^7 N/m^2$. The area of cross section of the wire is $10^{-6} m^2$. The maximum angular velocity with which it can be rotated in a horizontal circle ....... $rad/sec$

Six charges are placed at the corner of a regular hexagon as shown. If an electron is placed at its centre $O$, force on it will be:

Two resistances are given as $R _1=(10 \pm 0.5)\,\Omega$ and $R_2=(15 \pm 0.5)\, \Omega$. The percentage error in the measurement of equivalent resistance when they are connected in parallel is

An induction coil has an impedance of $10\Omega $ . When an $AC$ signal of frequency $1000\ Hz$ is applied to the coil, the voltage leads the current by $45^o$ . The inductance of the coil is

A potentiometer circuit shown in the figure is set up to measure $e.m.f.$ of a cell $E$. As the point $P$ moves from $X$ to $Y$ the galvanometer $G$ shows deflection always in one direction, but the deflection decreases continuously until $Y$ is reached. In order to obtain balance point between $X$ and $Y$ it is necessary to

A $U-$tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are in level with $10.0\; cm$ of water in one arm and $12.5\; cm $ of spirit in the other. if $15.0\; cm$ of water and spirit each are further poured into the respective arms of the tube, what is the difference in the levels (in $cm$) of mercury in the two arms?

(the specific gravity of spirit is $0.8.)$

A body performing unifom circular motion completed $140$ revolution in a second. Its angular speed is .......... $rad / s$

The displacement of a particle from a point having position vector $2 \hat{i}+4 \hat{j}$ to another point having position vector $5 \hat{i}+1 \hat{j}$ is ........ units