# gcse -electrciityWatch

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#1
can someone help me with this question, okay I get that A1 =5 A
but how does A2 = 8.75 A, would it not be also 3.75 A as it's in series with the other one
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4 days ago
#2
(Original post by student144)
can someone help me with this question, okay I get that A1 =5 A
but how does A2 = 8.75 A, would it not be also 3.75 A as it's in series with the other one
V = I x R, I being current and R being resistance. So 2.1 would be 3.75 x 4
0
4 days ago
#3
(Original post by student144)
can someone help me with this question, okay I get that A1 =5 A
but how does A2 = 8.75 A, would it not be also 3.75 A as it's in series with the other one
A1 and A are in parallel, and that parallel pair are in series with A2.

So, to find the current in A2 you need to add the currents in A and A1.
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