Question

Calculate the total resistance of a circuit containing three resistors wired in parallel when R1 = 100 , R2 = 200 O, and R3= 50 O

Consider that you slightly alter the previous circuit so that R1 and R2 are still in parallel, but R3 is now in series with the pervious two. What is the total resistance of this circuit?

Answer #1

If R is the total resistance of three resistors,
connected in parallel, with resistances R1,
R2, R3, then
1
R
=
1
R1
+
1
R2
+
1
R3
.
If the resistances are measured in ohms as
R1 = 40 Ω, R2 = 25 Ω, and
R3 = 32 Ω, with a possible error of 0.5% in
each case, estimate the maximum error in the calculated value of
R. (Round your answer to three decimal places.)

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Consider a simple circuit with two resistors connected in
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R1 = 30.0 Ohm, R2 = 10.0 Ohm, and a 12 V battery
Calculate the following values to one decimal places (enter just
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(a) If all the resistors are wired in series, what is the
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(b) With the resistors in series, what is the current coming out
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Find the equivalent resistance of a resistive network with three
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In other words: (R1 in series with R2) in parallel with R3. Quote
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