MCQ
If the capacitors having capacitance C1 and C2 are connected in parallel then their effective capacitance is given by:
  • A
    C = C1 - C2
  • B
    C = C1 + C2
  • C
    1/C = 1/C1 + 1/C2
  • D
    1/C = 1/C1 - 1/C2

Answer

  1. C = C1 + C2

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

Similar questions

A and B are two conductors carrying a current i in the same direction. x and y are two electron beams moving in the same direction

(a) There will be repulsion between A and B attraction between x and y

(b) There will be attraction between A and B, repulsion between x and y

(c) There will be repulsion between A and B and also x and y

(d) There will be attraction between A and B and also x and y

The minimum number of condensers each of capacitance of $2μ\text{F},$ in order to obtain resultant capacitance of $5μ\text{F},$ will be:
Consider Fig. in the NCERT text book of physics for Class XII. Suppose the voltage applied to A is increased. The diffracted beam will have the maximum at a value of θ that:

The device that does not work on the principle of mutual induction is

(a) Induction coil

(b) Motor

(c) Tesla coil

(d) Transformer

Hubble's law is related with

(a) Comet

(b) Speed of galaxy

(c) Black hole

(d) Planetary motion

Figure given below shows two identical parallel plate capacitors connected to a battery with switch S closed. The switch is now opened and the free space between the plate of capacitors is filled with a dielectric of dielectric constant 3. What will be the ratio of total electrostatic energy stored in both capacitors before and after the introduction of the dielectric

(a) 3 : 1

(b) 5 : 1

(c) 3 : 5

(d) 5 : 3

An electron, a proton, a deuteron and an alpha particle, each having the same speed are in a region of constant magnetic field perpendicular to the direction of the velocities of the particles. The radius of the circular orbits of these particles are respectively Re, Rp, Rd and Ra. It follows that

(a)  

(b)  

(c)  

(d)  

Which of the following is not a consequence of Gauss’s law?

The basic magnetization curve for a ferromagnetic material is shown in figure. Then, the value of relative permeability is highest for the point

(a) P

(b) Q

(c) R

(d) S

The inability of a lens to bring all the rays coming from a point object to focus at one single point is called: