Download ConcepTest 26.2a Parallel Resistors I

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Transcript
ConcepTest 26.2a
Parallel Resistors I
1) 10 A
In the circuit below, what is the
2) zero
current through R1?
3) 5 A
4) 2 A
5) 7 A
The voltage is the same (10 V) across each
R2= 2 Ω
resistor because they are in parallel. Thus,
we can use Ohm’s Law, V1 = I1 R1 to find the
R1= 5 Ω
current I1 = 2 A.
A
10 V
Follow-up: What is the total current through the battery?