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If 20w of power is applied to primary of an ideal transformer with a turn ratio of 4, find the power delivered to the secondary load.



   A bridge rectifier is fed by a 15 Vac transformer. Determine the dc load voltage and        current for the circuit when it has a 3kΩ load.



   Find the value of R, in series of Germanium identical diode at drop of 3mA, if V0 = 4V when    IL =0, and V0 changes by 45mV per 3mA of load current. (Assume n =1)















                                 ………….Good Luck……….

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Replies to This Discussion

come on guys let's solved it

 agr kio galti ho to plz bta dana



thanks Aqsa

Slam: there are two mistakes in this assignment i guess so far

1. in question 1 they are not asking for voltages this is just about power as we now the ideal transformer not consume power and deliver full power to output.  Either voltages change but change in current will be in reverse so output power also equal to input. 

2. Question no 2 just minor thing that convert current into milli instead of micro it will be 4.01mA

over all well done keep it up. 

thank you aqsa me dakhti

phy 301 k paper sare kar du yar koi mcqs file b aur yai b bta du k kon say chap important hai sunday ko paper hai so urgent kar day share 

Here is past papers but will share current paper by tomorrow around 6 Pm....



thnx veer :-*

here is reference mcq



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