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physics 9702 (cie) question

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Sue T:
its a past paper question
MJ 06 paper 2
question 7 (b)

in the mark scheme it says:
shorted lamp A would cause damage to the supply/lamps
/blow fuse in supply

i dunno y theyre talkin bout lamp A now  ???

astarmathsandphysics:
Lamp A is in series with Lamps B and C so the current through A is the sum of the currents through B and C. Lamp A will probably be the most likely to be damaged.

halosh92:

--- Quote from: astarmathsandphysics on December 02, 2009, 12:31:00 pm ---Lamp A is in series with Lamps B and C so the current through A is the sum of the currents through B and C. Lamp A will probably be the most likely to be damaged.

--- End quote ---

ive got the same doubt i dont get it either ???

astarmathsandphysics:
The only way from one supply terminal to the other is through lamp A. It will experience max current so be most likely to blow.

halosh92:

--- Quote from: astarmathsandphysics on December 02, 2009, 01:13:21 pm ---The only way from one supply terminal to the other is through lamp A. It will experience max current so be most likely to blow.

--- End quote ---
oh ok thx alot sir :D

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