![]() ![]() The resultant electric field is a vector sum of the electric field due to individual charges. Even when the capacitor is discharged net charge of the capacitor remains zero because then each plate has zero charge. The Principle of Superposition: It states that every charge in space creates an electric field at a point independent of the presence of other charges in that medium. If we combine the Coulomb law and the principle of superposition, there is nothing else. ![]() The net charge of a charged capacitor is zero because the charges on its two plates are equal in number and opposite in sign. This fact is called the principle of superposition. It has been proven experimentally that the vector sum of all the forces on a charge due to a number of other charges, taken one at a time, is the vector. What will be the masses after the charging? Principle of Superposition in Electrostatics used to Calculate Force Between Multiple Charges Consider a system in a vacuum with n motionless that is stationary charges q 1, q 2, and q 3. Sphere A is given positive charge of Q coulomb and B is given an equal negative charge.So initially before the charge is given A circuit composed of two voltage sources, for example, will be equal to the sum of two circuits, each one using one of the sources and having the other removed. The work done done in moving apart the plates will be used up in this transference and dissipated in the form of heat in the connecting wires Question 3 two identical metallic spheres A and B of exactly equal masses are taken. The superposition theorem states that a circuit with multiple voltage and current sources is equal to the sum of simplified circuits using just one of the sources. So energy of the capacitor will decrease. Thus some energy of the capacitor will be transferred to the battery. Some charges from plates passing through the connecting wire will charge the battery. Now C is decreasing and V remains constant, the charge will decrease on the capacitor. Now Since Capacitance depends on the distance between the plates, it will decrease with the movement. Since the battery remains connected, the potential difference V between the plates of the capacitor will remain constant. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |