Thank you SooHyun SooHyun Lee
11P
Bangkok Patana School
________________________________________
From: Matt Baker
Sent: 03 February 2012 09:00
To: Andrew Koomenjoe Nyaga; Arisara Amrapala; Boondaree Chang; Chrischawit Chomsoonthorn; Christopher Lo; Connor Blair Sailes; Frazer Allen Briggs; Huei-Yu Daniel Lo; Isabel Catriona McDonald; Kavin Supatravanij; Luke Michael Gebbie; Lydia Anna Foley; Morrakot Sae-Huang; Puchawin Borirackujarean; Qing Tang; Sanyam Grewal; Sebastien Grimm; Soo Hyun Lee; Tatiksha Singh; Usa Wongsanguan; Yanida Areekul; Yi-Lin Huang
Subject: 6.17 6.17 01 December 2011 18:08
· 6.17 recall the structure of a transformer, and understand that a transformer changes the size of an alternating voltage by having different numbers of turns on the input and output sides 6.17 Practical - model answers 17 January 2012 14:33
· If you…
· Turn the powerpack to dc [cid:image001.jpg@01CCE252.359BA450] No current is induced in the Secondary Coil. To induce current you need a changing magnetic field and this is not produced by applying dc to the Primary Coil
· Turn the powerpack to ac [cid:image002.jpg@01CCE252.359BA450] ac is induced in the Secondary Coil. To induce current you need a changing magnetic field and this is produced by applying ac to the Primary Coil
3. Increase the number of turns in the Secondary Coil The size of the induced voltage in the secondary coils increases
4. Increase the voltage on the Primary Coil [cid:image003.jpg@01CCE252.359BA450] The size of the induced voltage in the secondary coils increases
5. Decrease the number of turns in the Secondary Coil The size of the induced voltage in the secondary coils decreases
6. Decrease the voltage on the Primary Coil The size of the induced voltage in the secondary coils decreases
11P
Bangkok Patana School
________________________________________
From: Matt Baker
Sent: 03 February 2012 09:00
To: Andrew Koomenjoe Nyaga; Arisara Amrapala; Boondaree Chang; Chrischawit Chomsoonthorn; Christopher Lo; Connor Blair Sailes; Frazer Allen Briggs; Huei-Yu Daniel Lo; Isabel Catriona McDonald; Kavin Supatravanij; Luke Michael Gebbie; Lydia Anna Foley; Morrakot Sae-Huang; Puchawin Borirackujarean; Qing Tang; Sanyam Grewal; Sebastien Grimm; Soo Hyun Lee; Tatiksha Singh; Usa Wongsanguan; Yanida Areekul; Yi-Lin Huang
Subject: 6.17 6.17 01 December 2011 18:08
· 6.17 recall the structure of a transformer, and understand that a transformer changes the size of an alternating voltage by having different numbers of turns on the input and output sides 6.17 Practical - model answers 17 January 2012 14:33
· If you…
· Turn the powerpack to dc [cid:image001.jpg@01CCE252.359BA450] No current is induced in the Secondary Coil. To induce current you need a changing magnetic field and this is not produced by applying dc to the Primary Coil
· Turn the powerpack to ac [cid:image002.jpg@01CCE252.359BA450] ac is induced in the Secondary Coil. To induce current you need a changing magnetic field and this is produced by applying ac to the Primary Coil
3. Increase the number of turns in the Secondary Coil The size of the induced voltage in the secondary coils increases
4. Increase the voltage on the Primary Coil [cid:image003.jpg@01CCE252.359BA450] The size of the induced voltage in the secondary coils increases
5. Decrease the number of turns in the Secondary Coil The size of the induced voltage in the secondary coils decreases
6. Decrease the voltage on the Primary Coil The size of the induced voltage in the secondary coils decreases
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