When air is replaced by a dielectric medium of constant K, the maximum force of attraction between two charges separated by a distance? Mark as favorite Copy Link increases K^-1 times decreases K times remains unchanged increases K times Check Answer
When air is replaced by a dielectric medium of constant K, the maximum force of attraction between two charges separated by a distance? Mark as favorite Copy Link increases K^-1 times decreases K times remains unchanged increases K times Check Answer
The electric potential V at any point O (x, y, z all in metres) in space is given by V = 4x² volt. The electric field at the point (1 m, 0, 2 m) in volt/metre is? Mark as favorite Copy Link 16 along positive z-axis 16 along negative x-axis 8 along negative x-axis 8 along positive x-axis Check Answer
Capacitors are used in electrical circuits where appliances need more? Mark as favorite Copy Link current power voltage resistance Check Answer
The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is? Mark as favorite Copy Link linearly proportional to the distance between the plates proportional to the square root of the distance between the plates independent of the distance between the plates inversely proportional to the distance between the plates Check Answer
Which of the following options are correct? If a conductor has a potential V 4- 0 and there are no charges anywhere else outside, then? Mark as favorite Copy Link there cannot be any charge in the body of the conductor. there must be charges inside the surface. there must not be charges on the surface or inside itself. there must be charges only on the surface. Check Answer
Equipotentials at a great distance from a collection of charges whose total sum is not zero are approximately? Mark as favorite Copy Link planes paraboloids spheres ellipsoids Check Answer
Consider the following statements regarding series grouping of capacitors and select the correct statements. I. Charge on each capacitor remains same and equals to the main charge supplied by the battery. II. Potential difference and energy distributes in the reverse ratio of capacitance. III. Effective capacitance is even les than the least of teh individual capacitances.? Mark as favorite Copy Link I and III I, II and III I and II II and III Check Answer
Which of the following quantities do not depend on the choice of zero potential or zero potential energy? Mark as favorite Copy Link Potential energy of a two-charge system Potential at a point Potential difference between two points None of these Check Answer
A parallel plate condenser is immersed in an oil of dielectric constant 2. The field between the plates is? Mark as favorite Copy Link decreased, proportional to 1/2 increased, proportional to root 2 increased, proportional to 2 decreased, proportional to 1/root2 Check Answer