Youngfella
- Feb 1, 2013
- 8
- Joined
- Feb 1, 2013
- Messages
- 8
A
capacitor:-
Sometime ago i wanted to know everything about a capacitor and a diode,4rm what i learnt capacitor can store voltage and can act as a block(block dc & allows ac)
1-ok first question how does a capacitor stores electricity is it that u must connect anode and cathode(question is it connected in series with the power source) to d capacitor and if it stores it when does it release it
2-a capacitor can block dc and allows ac how? But theoritically there is an insulator btw a capacitor and i heard capacitors can block dc and pass ac when conected in parallel(ie connected to only one terminal) ok how does the voltage pass through d insulator
B
transistor:-
i learnt transistor act as diode and can amplify signal(i dont understand is it that it amplifies and turn electricity to ac)
i learnt it also has terminals am going to deal with npn only,ok n-p-n means negative positive negative(right) since p is d base then is it that i must connect positive to base and negative to collector and it will emmit negative 4rm emmiter,ok how can negative and positive meet together its like impossible,so it tried d same connection and d transistor started burning,then i thought how can negative and positive meet so i changed it and i put positive to base(to open d transistor)and i connected positive to collector which is suppose to be n(negative) and i assumed the emitter will realese positive so i connected it to a led and it lighted up,i just dont understand i practiced the reverse of what ive learnt and it worked,and i was 100% sure it was an npn transistor...pls help and share any knowledge u know abt transistor and capacitor based on hw they ar connected and used.thanks
capacitor:-
Sometime ago i wanted to know everything about a capacitor and a diode,4rm what i learnt capacitor can store voltage and can act as a block(block dc & allows ac)
1-ok first question how does a capacitor stores electricity is it that u must connect anode and cathode(question is it connected in series with the power source) to d capacitor and if it stores it when does it release it
2-a capacitor can block dc and allows ac how? But theoritically there is an insulator btw a capacitor and i heard capacitors can block dc and pass ac when conected in parallel(ie connected to only one terminal) ok how does the voltage pass through d insulator
B
transistor:-
i learnt transistor act as diode and can amplify signal(i dont understand is it that it amplifies and turn electricity to ac)
i learnt it also has terminals am going to deal with npn only,ok n-p-n means negative positive negative(right) since p is d base then is it that i must connect positive to base and negative to collector and it will emmit negative 4rm emmiter,ok how can negative and positive meet together its like impossible,so it tried d same connection and d transistor started burning,then i thought how can negative and positive meet so i changed it and i put positive to base(to open d transistor)and i connected positive to collector which is suppose to be n(negative) and i assumed the emitter will realese positive so i connected it to a led and it lighted up,i just dont understand i practiced the reverse of what ive learnt and it worked,and i was 100% sure it was an npn transistor...pls help and share any knowledge u know abt transistor and capacitor based on hw they ar connected and used.thanks
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