The elastic modulus measures the stiffness in a material, but strength is a function of the modulus. Stiffness is the measurement of the... View Article
Galvanometer has small resistance. The construction of the galvanometer is same as that of the ammeter but the only difference between an ammeter... View Article
An electro-magnet is a magnet that can be switched On and Off by electric current. It comprises a coil and a battery in its simplest form.... View Article
When a charged capacitor is connected to an uncharged capacitor then the following things happen: The magnitude of the charge on the charged... View Article
When you connect two capacitors in series and connect them to a voltage source, you create a voltage divider circuit. The input voltage divides... View Article
Capacitors store only DC voltage. Capacitors do not store AC voltage because AC reverses direction periodically. Therfore, capacitor is... View Article
The three applications of capacitors in cicuits are as follows: Capacitors combined with resistors are often used as frequency-selectrive... View Article
The working volatge of a capacitor is the minimum continuous voltage that can be applied to a capacitor before the capacitor fails. The... View Article
A one farad capacitor stores a coulomb of charge at 1 V. A coulomb is 6.25 × 1018 electrons. One amp represents a rate of electron flow of 1... View Article
No capacitors do not increase volatges but they are used in many appliations where the output is higher than the input. Capacitors are energy... View Article
Some important reasons for using a capacitor in DC motor are as follows: Capacitors are used to reduce interference and noise in DC motor.... View Article
At high AC frequencies, the current changes direction quickly but the volatge across the capacitor doesn’t change quickly because the capacitor... View Article
The dielectric in a capacitor serves two main purposes: It prevents electrons from travelling from one plate to another within the capacitor.... View Article
The storage capacity of capacitors depend on the leakage current of the capacitor. If the measure of the leakage current of a given capacitor at... View Article
Capacitors discharge rapidly while batteries discharge slowly as required by most electrical applications. However, a new type of capacitor known... View Article
The potential energy in a capacitor is stored in the form of electric energy. The kinetic energy in the inductor is stored in the form of a... View Article
The resistor limits the rate of charge that flows into or out of the capacitor. The larger the resistor, the slower the charge/discharge rate.... View Article