Question

Find the equivalent resistance of a resistive network with three resistors: R1 = 2 Ω (ohm), R2 = 7 Ω (ohm), and R3 = 9 Ω (ohm), where the series combination of R1 and R2 is in parallel with R3. In other words: (R1 in series with R2) in parallel with R3. Quote your answer in Ω (ohm) rounded to one decimal place.

Answer #1

Let the equivalent resistance of the resistive network is R.

The equivalent resistance for the two series resistance R1 and R2 is Rs.

Now Rs and R3 are in parallel to each other.

The total equivalent resistance for the resistive circuit is

The equivalent resistance of a resistive network with three resistors is 4.5 .

Resistor R1=3.7 Ohm is connected in series to parallel combination
of resistors R2=7.9 Ohm and R3=11.1 Ohm. Find equivalent resistance
of this combination. Give answer in Ohms.
Resistor R1=3.7 Ohm is connected in series to parallel combination
of resistors R2=7.9 Ohm and R3=10.7 Ohm. This combination is
connected to the ideal battery of V=10.6 V. Find current through
the R3. Give answer in A.

Consider a simple circuit with two resistors connected in
parallel.
R1 = 30.0 Ohm, R2 = 10.0 Ohm, and a 12 V battery
Calculate the following values to one decimal places (enter just
the number)
The equivalent resistance Ohms
The voltage across resistor R1 V
The voltage across resistor R2 V
The current through resistor R1 A
The current through resistor R2 A
Consider a simple circuit with two resistors connected in
series.
R1 = 1.0 Ohm, R2 = 7.0 Ohm, and a 12 V...

Three resistors having resistances of R1 = 1.52 Ω ,
R2 = 2.32 Ω and R3 = 4.94 Ω respectively, are
connected in series to a 28.4 V battery that has negligible
internal resistance.
Find the equivalent resistance of the combination.
Find the current in each resistor.
Find the total current through the battery.
Find the voltage across each resistor.
Find the power dissipated in each resistor.
Which resistor dissipates the most power, the one with the
greatest resistance or...

Determine the equivalent resistance of resistors R1, R2, and R3
in (Figure 1) for R1 = 30 Ω , R2 = 30.0 Ω, and R3 = 15 Ω.
Determine the current through R1 if ε = 110 V .
Determine the current through R2. (units A)
Determine the current through R3. (units A)

Resistor R1=3.0 Ohm is connected in series to a parallel
combination of R2=9.0 Ohm and R3=7.0 Ohm. The combination of three
resistors is connected to a real battery of emf 12.0 V. Find
internal resistance of a battery if current through a battery is
0.40 A. Give answer in Ohms.

Two resistors, R1 = 6.00 Ω and R2 = 11.0 Ω, are connected in
parallel, and the resulting combination is connected to a 9.00-V
battery. (a) Find the equivalent resistance of the combination.
Ω

Resistor R1=3.7 Ohm is connected in series to parallel
combination of resistors R2=7.9 Ohm and R3=11.1 Ohm. This
combination is connected to the ideal battery of V=10.6 V. Find
voltage drop on the resistor 7.9. Give answer in V.

Three resistors (R1 = 36 Ω, R2 = 33 Ω,
R3 = 37 Ω) are connected in series to a 7 V battery as
shown. The internal resistance of the battery is negligible.
(a) What is the current flowing through R1
(b) What is the current flowing through R2
(c) What is the current flowing through R3
(d) What is the voltage across R1
(e) What is the voltage across R2
(f) What is the voltage across R3

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.)

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?

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