Question

If two electric resistances are connected to a battery for a minimum electric current should flow through the circuit, how you should connect these resistors? Either parallel or series and why?

Answer #1

Two resistors have resistances R(smaller) and R(larger), where
R(smaller) < R(larger). When the resistors are connected in
series to a 12.0-V battery, the current from the battery is 1.05 A.
When the resistors are connected in parallel to the battery, the
total current from the battery is 10.7 A. Determine the two
resistances.

Two resistors have resistances R(smaller) and R(larger), where
R(smaller) < R(larger). When the resistors are connected in
series to a 12.0-V battery, the current from the battery is 1.52 A.
When the resistors are connected in parallel to the battery, the
total current from the battery is 10.5 A. Determine the two
resistances.

Two resistors have resistances R(smaller) and R(larger), where
R(smaller) < R(larger). When the resistors are connected in
series to a 12.0-V battery, the current from the battery is 1.48 A.
When the resistors are connected in parallel to the battery, the
total current from the battery is 11.5 A. Determine the two
resistances.

Three resistors with resistances of 10 Ω, 6.67 Ω and 4.25 Ω are
connected in parallel to each other and to a 12V battery. What is
the total current in this circuit?

Series/Parallel Circuits: When unequal resistors are connected
in series across an ideal battery,
the same power is dissipated in each one.
the potential difference across each is the same.
the equivalent resistance of the circuit is equal to the
average of all the resistances.
the current flowing in each is the same.
the equivalent resistance of the circuit is less than that of
the smallest resistor.

When two unknown resistors are connected in series with a
battery, the battery delivers 255 W and carries a total current of
5.00 A. For the same total current, 40.5 W is delivered when the
resistors are connected in parallel. Determine the values of the
two resistors.
_____Ω (higher resistance)
_____Ω (lower resistance)

The emf of a battery is 30v. This battery is placed in a circuit
with three resistors 430ohms, 680ohms, and 1100ohms where the
680ohm and 1100ohm resistors are in parallel and then connected in
series to the 430ohm resistor and a switch. The terminal voltage of
the battery is 7.4 volts.
a) Draw the circuit using appropriate symbols and labels.
b) How much current will flow in this circuit?
c) How much power would be dissipated by the 1100 ohm...

Two resistors 1.00 ohms and 2.00 ohms are connected in parallel,
then they are connected to 3.00 ohms resistor and a 9.00 V battery
in series to complete a circuit.
a. What is the equivalent resistance of this circuit?
b. What is the current through the 1.00 Ohms resistor?
c. What is the voltage on 3.00 ohms resistor?
d. What is power dissipated on 2.00 ohm resistor?

(a) What is the equivalent resistance of six resistors connected
in series with an 18.0-V battery if each resistor has a value of
20.0 Ω?
_______Ω
(b) Determine the current flowing through each of the six
resistors.
_______A
(c) If the six resistors were instead connected in parallel across
the battery, what would be the equivalent resistance?
_________ Ω
(d) Determine the current through each resistor for this parallel
connection.
_________A

Supppose you have the following items to construct the circuit:
two 9 V battery, two 100 ohm resistor, one 200 ohm resistor, one
300 ohm resistor and enough wires and clips. a)If you were to use
all these items to build one circuit, how would you connect the
resistors (parallel or in series) to find the smallest and largest
current, that could be produced in a full circuit.(Draw both
circuits you used to find them) b) Draw a new circuit,...

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