1. Electric current in a metal wire is due to the flow of:





Write Comment

Type in
(Press Ctrl+g to toggle between English and the chosen language)

Comments

Tags
Show Similar Question And Answers
QA->The flow of electric current is measured in ?....
QA->A transformer has a turn ration of 1:If the current in the primary has a peak value of 5A, then the current in the secondary will be :....
QA->Who discovered Induction of Electric Current ?....
QA->Magnetic field of electric current was discovered by ?....
QA->What is the unit of electric current?....
MCQ->The simplest method of welding two pieces of metal together is known as pressure welding.The ends of a metal are heated to a white heat-for iron,the welding temperature should be about 1300C-in a flame.At this temperature the metal becomes plastic.The ends are pressed or hammered together,and the joint is smoothed off.Care must be taken to ensure that surfaces are thoroughly clean first,for dirt will weaken the weld.Moreover,the heating of iron or steel to a high temperature cause oxidation,and a film of oxide is added to the heated surfaces.For this reason,flux is applied to the heated metal.At welding heat,flux melts and the oxide particles are dissolved in it together with any other impurities which may be present.The metal surfaces are pressed together,and the flux is squeezed out from the center of the weld.A number of different types of weld may be used,but for fairly thick bars of metals,a vee-shaped belt should be normally employed.It is rather stronger than ordinary butt weld. The simplest way of welding two pieces of metal together is....
MCQ->Electric current in a metal wire is due to the flow of:....
MCQ->A wire has a resistance R ohm. If another wire of the same material and same weight has double the diameter (as compared to the first wire), the resistance of the second wire will be....
MCQ->A metal wire of length l and area of cross section A is subjected to a longitudinal force Mg. The wire elongates by a length l. If the Youngs Modulus of the material of the wire is Y, the work done by the external force is:....
MCQ->The following statements relate to a laminar flow :1. Laminar flow is rotational.2. In laminar flow the loss of head is proportional to the square of the velocity.3. In laminar flow the loss of head is proportional to the first power of viscosity.4. In laminar flow the velocity is constant over the cross-section.5. Other quantities remaining the same, increase in diameter will increase the Reynolds number in laminar flow.Of these statements :....
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
DMCA.com Protection Status Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions