capacitors

access_time 2020-05-07T17:06:18.459Z face PRAVEEN PANDEY
capacitors & dielectrics Capacitance The Capacitance is determined by, among other things, the characteristics of the dielectric material. International standards speak of the Dielectric Constant or permittivity, designated by the symbol ε. Description A capacitor serves as a reservoir for electric ...

Tests for burnt clay bricks as per IS : 3495-1976

access_time 2020-04-29T06:45:59.290Z face Admin
Tests for burnt clay bricks as per IS : 3495-1976 Tests for burnt clay bricks as per is : 3495-1976. are described below: 1. Test for compressive strength. According to Tests for burnt clay bricks as per IS : 3495-1976, Grind the two bed faces to provide smooth, even and parallel faces. Immerse the...

ADVANTAGES AND DISADVANTAGES OF CONCRETE

access_time 2020-04-29T06:40:40.900Z face Admin
Concrete is considered as a chemically combined mass where the inert material acts as a filler and the binding materials act as a binder. The most important binding materials are cement and lime. Inert materials used in concrete are termed as aggregates. Most common aggregates are sand, brick chips...

Precautions must be taken in storing cement

access_time 2020-04-29T06:37:19.189Z face Admin
Precautions must be taken in storing cement Portland cement is a finely ground material. It, therefore, readily absorbs moisture even from the atmosphere. It is therefore essential to protect it from dampness during storage. Lack of proper care may cause setting of cement or reduction in its streng...

RESISTANCE IN SERIES AND PARALLEL

access_time 2020-04-23T15:52:05.991Z face PRAVEEN PANDEY
RESISTANCE IN SERIES AND PARALLEL RESISTORS IN SERIES When are resistors in series? Resistors are in series whenever the flow of charge, called the current, must flow through devices sequentially. For example, if current flows through a person holding a screwdriver and into the Earth, then in [link]...