Question 9:
A battery of 9 V is connected in series with resistors of 0.2 G, 0.3 G, 0.4 G, 0.5 G
and 12 G, respectively. How much current would flow through the 12 G resistor?
Answer:
There is no current division occurring in a series circuit. Current flow through the
component is the same, given by Ohm’s law as
V = IR
I = V/R
Where,
R is the equivalent resistance of resistances 0.2 Ω, 0.3 Ω, 0.4 Ω, 0.5 Ω and 12 Ω.
These are connected in series. Hence, the sum of the resistances will give the
value of R.
R = 0.2 + 0.3 + 0.4 + 0.5 + 12 = 13.4 Ω
Potential difference, V = 9 V
Therefore, the current that would flow through the 12 G resistor is 0.671 A.
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