Posted on October 21, 2011Electric Current and flow of electrons I have read that the FLOW OF ELECTRONS is called electricity. I wanna know that what is meant by flow of electrons? Pleaz answer me….(Asked Kiruthika)Answer:Electric current is the flow of charges. read moreShare with FriendsTweetMoreShare on TumblrEmailPrintPocket
Posted on August 22, 2011Current electricity – Numerical A 10m length of aluminium wire has a diameter of 1.5mm. It carries a current of 12A. Find (i) the current density. (ii) the drift velocity (iii) the electric field in the wire. aluminium has approximately 10^29 free electrons per m^3Share with FriendsTweetMoreShare on TumblrEmailPrintPocket
Posted on February 22, 2011February 24, 2011Class XII Physics SOME QUESTIONS FROM CBSE 2004 Board Question Paper Physics 2004 Set 1Why is shortwave band used for long distance radio broadcast?Two metals A and B have work functions 2 eV and 5 eV respectively. Which metal has lower threshold wavelength?Draw read moreShare with FriendsTweetMoreShare on TumblrEmailPrintPocket
