Download App

2. Electric potential and capacitance — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics2. Electric potential and capacitance1 Mark
MCQ
While a capacitor remains connected to a battery and dielectric slab is applied between the plates, then
  • A
    Potential difference between the plates is changed
  • ✓
    Charge flows from the battery to the capacitor
  • C
    Electric field between the plates increases
  • D
    Energy store in the capacitor decreases
✓

Answer

Correct option: B.
Charge flows from the battery to the capacitor
b
(b) By inserting the dielectric slab. Capacitance (i.e. ability to hold the charge) increases. In the presence of battery more charge is supplied from battery.

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

More "M.C.Q (1 Marks)" from 2. Electric potential and capacitance→2. Electric potential and capacitance — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A particle of mass $1\,\, mg$ has the same wavelength as an electron moving with a velocity of $3 \times 10^6 \,\,m s^{-3}$. The velocity of the particle is

$($ mass of electron $= 9.1 \times 10^{-31}\,\, kg)$

→
Which of the following isotopes is used for the treatment of cancer
→
In the figure a potential of $+$ $1200\, V$ is given to point $A$ and point $B$ is earthed, what is the potential at the point $P$....$V$
→
Which of the following particle has similar mass to electron
→
The dimensions of capacitance are:
→
Assertion : The electrical conductivity of earth’s atmosphere decrease with altitude.
Reason : The high energy particles (i.e. g-rays and cosmic rays) coming from outer space and entering our earth’s atmosphere causes ionisation of the atoms of the gases present there and the pressure of gases decreases with increase in altitude.
→
A uniform vertical electric field $E$ is established in the space between two large parallel  plates. A small conducting sphere of mass $m$ is suspended in the field from a string of  length $L$. If the sphere is given $a + q$ charge and the lower plate is charged positvely, the period of oscillation of this pendulum is :- 
→
The photoelectric effect was successfully explained by
→
Radiation pressure on any surface:
→
A compound microscope has a magnifying power $30$. The focal length of its eyepiece is $5\,cm$. Assuming the final image to be at the least distance of distinct vision $(25\, cm)$. The magnification produced by objective is
→