English
Tamil Nadu Board of Secondary EducationHSC Science Class 12

If the voltage applied on a capacitor is increased from V to 2V, choose the correct conclusion. - Physics

Advertisements
Advertisements

Question

If the voltage applied on a capacitor is increased from V to 2V, choose the correct conclusion.

Options

  • Q remains the same, C is doubled

  • Q is doubled, C doubled

  • C remains same, Q doubled

  • Both Q and C remain same

MCQ
Advertisements

Solution

C remains same, Q doubled

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Electrostatics - Evaluation [Page 72]

APPEARS IN

Samacheer Kalvi Physics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 1 Electrostatics
Evaluation | Q I. 12. | Page 72

RELATED QUESTIONS

A spherical capacitor has an inner sphere of radius 12 cm and an outer sphere of radius 13 cm. The outer sphere is earthed and the inner sphere is given a charge of 2.5 µC. The space between the concentric spheres is filled with a liquid of dielectric constant 32.

(a) Determine the capacitance of the capacitor.

(b) What is the potential of the inner sphere?

(c) Compare the capacitance of this capacitor with that of an isolated sphere of radius 12 cm. Explain why the latter is much smaller.


A capacitor of unknown capacitance is connected across a battery of V volts. The charge stored in it is 360 μC. When potential across the capacitor is reduced by 120 V, the charge stored in it becomes 120 μC.

Calculate:

(i) The potential V and the unknown capacitance C.

(ii) What will be the charge stored in the capacitor, if the voltage applied had increased by 120 V?


Two metal spheres of capacitance C1 and C2 carry some charges. They are put in contact and then separated. The final charges Q1 and Q2 on them will satisfy


Each of the capacitors shown in figure has a capacitance of 2 µF. find the equivalent capacitance of the assembly between the points A and B. Suppose, a battery of emf 60 volts is connected between A and B. Find the potential difference appearing on the individual capacitors.


Find the equivalent capacitance of the system shown in figure between the points a and b.


A capacitor is made of a flat plate of area A and a second plate having a stair-like structure as shown in figure . The width of each stair is a and the height is b. Find the capacitance of the assembly.


A cylindrical capacitor is constructed using two coaxial cylinders of the same length 10 cm and of radii 2 mm and 4 mm. (a) Calculate the capacitance. (b) Another capacitor of the same length is constructed with cylinders of radii 4 mm and 8 mm. Calculate the capacitance.


Three capacitors are connected in a triangle as shown in the figure. The equivalent capacitance between points A and C is ______.


Capacitors are used in electrical circuits where appliances need more ______.

Obtain the equivalent capacitance of the network shown in the figure. For a 300 V supply, determine the charge on each capacitor.

 


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×