Which device is used for the source of emission of electrons in a crt?
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is the value of inductance depends upon the evalue of thitha in doubly excited machine?
for which possible reasons a motor can fail to start??
what is the meaning of "i.p.-43" and duty cycle-s1 on the name plate of a asynchronous machine?
How to test IR testing & magnetic balance test
1. What does mean of "PS" stand for Diff. CT class? 2. What is the formula of KW for 1Phase load inturms of voltag,current & P.F.?
what is the use of the puls transformer in UPS & how it works???????????
what is difference between fuse and circuit breaker?
Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing
What is cable tray, its type, and its support?
How to find the maximum load(in KW)in a big industry, having motors,lights,lifts etc..?
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
in dc transmission the frequency pi is zero, then how it will transmit communication signal?