D’Arsonval Galvanometer Construction Working

Construction of D’Arsonval Galvanometer D’Arsonval Galvanometer consists of two main parts A permanent magnet A light coil Here we use a very lightweight rectangular or circular aluminum frame. Then, on that aluminum frame, we wrap … Read more

Galvanometer Types Applications of Galvanometer

The galvanometer is an indicating instrument. This instrument mainly detects the presence of any small electric signal in a circuit. Although this instrument can measure currents and voltages. But we normally use this instrument to … Read more

electromagnetic induction

Relation between Magnetism and Electricity

All of us know that whenever an electric current flows through a conductor, a magnetic field appears surrounding the conductor. Again the electric current means the flow of electrons. Hence, the motion of electrons causes … Read more

positive and negative plates of a lead acid battery

Construction of Lead Acid Battery

A lead acid battery cell consists of three main components. These are two electrodes and the electrolyte. The electrodes are of rectangular plate shape. For this reason, we call positive electrodes as positive plates and … Read more

battery room

Maintenance of Lead Acid Battery

Avoid Overcharging We should avoid overcharging of the lead-acid battery. Because of overcharging, may make the lead sulfate harden. Hence, it becomes difficult to convert it to the active materials. Hence, the specific gravity of … Read more

Duracell Battery Cells

Battery and Battery Cell

What is the Battery Cell? The electric battery cell is a device. It has two electrodes, immersed in the electrolyte. A battery cell produces electricity. The electricity in the battery is due to chemical reactions … Read more


Electrolysis and Electrodes Reactions

What is Electrolyte? When we dissolve some specific compounds in water, the compounds split up in positive and negative ions. Due to the presence of ions these solutions can carry electric current. We call these … Read more