Why Transistors are not used as switching devices?
Answer Posted / gnanbalaji
The above said answers are wrong.Recently power transistors
were developed.They can be used.Due to secondary breakdown,
conduction losses,they are not used frequently.Due to small
reverse leakage current they will turn ON automatically.
| Is This Answer Correct ? | 4 Yes | 6 No |
Post New Answer View All Answers
Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.
What is the main cause of magnetism?
what is the meaning of impedance protected in instrument cooling fan
Is vtg is controlled by the resistor? if else how much?
why and how current drawn by battery charger depends upon the altitude where it is located?
what happens if dc supply is given and the remedies for it.
What is the disadventage of gland earthing(power cable) if any. ?
Define unilateral circuit?
Haw to check conductivity of budbar
completed BE & done apprentice at tneb & having experience 6 years. want to get c license. will apprentiship & BE be helpful for getting c license. will i get any preference by showing this?
what are the specifications we must look at to select a relay for any capacity motor?
what is the maintaining Cf in UPS.
What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?
What is the power factor of a transformer at no load?
What are the major reasons for balancing hydro-thermal mix?