The brief concept of EMF (Electromotive Force)
EMF is short form of electromotive force. All the metals contain a large number of free electron which direction inside the metal piece. If battery or voltage source is connected across the metal piece as shown in
What is the formation of PN-Junction?
A P-type and N-type semiconductor are joint together with a help of special fabrication techniques to form a PN-Junction. The terminals are brought out for external connection with P-type and N-type semiconductor. The P side is called
Difference between conductor, insulator and semiconductor
Conductor Insulator Semiconductor The conductivity of conductor is very high. The conductivity of insulator is very low. The conductivity of semiconductor is moderate. It has very low resistivity. It has very high resistivity. It has moderate resistivity.
Yarn count and yarn numbering system
Definition The count of a yarn is a numerical expression which defines its fineness. It is also called as yarn number or liner density. It is also called as yarn diameter. The fineness of yarn cannot be
Yarn count conversion formula
The count of a yarn is a numerical expression which defines its fineness. It is also called as yarn number or liner density. It is also called as yarn diameter. The fineness of yarn cannot be expressed
Types of rope drive – fiber and wire rope
Rope drives are wildly used where large amount of power is to be transmitted from one pulley to another pulley. There are two types of rope drive – Fiber rope These are made up from fiber material
Difference between addition polymerization and condensation polymerization
Addition polymerization Condensation polymerization The addition polymerization means that two monomers react with each other and no other small molecules are generated. The best example is polymerization of ethylene. The condensation polymerization, as a contrast, normally involves
Difference simple gear, compound gear and elliptical gear train
Simple gear train Compound gear train Elliptical gear train Only one gear in each shaft and there is a relative motion between shaft axis. In this gear there is more than one gear on the shaft which
Types of body of material
There are three types of body are mainly considered in strength of material. 1) Elastic body A body regains its originals dimensions when the external load acting on it is completely removed are called as elastic body.
Mechanical Properties of Material
These Properties are explained as follows – 1) Strength The ability of a material to resist its failure under the action of load is called as strength of material. 2) Elasticity The property by virtue of which