Question

When resistors are connected in parallel, how does the amount of current a resistor receives depend on its resistance? i.e. Do larger resistances receive more or less current than smaller resistances? Explain your reasoning

Answer #1

Two resistors are connected in parallel.
a.) If a third resistor is now connected in parallel with the
original two, does the equivalent resistance of the circuit
increase, decrease, or remain the same?
b.) Choose the best explanation from among the
following:
1. The third resistor gives yet another path for current to flow
in the circuit, which means that the equivalent resistance is
less.
2. Adding a resistor generally tends to increase the resistance,
but putting it in parallel...

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.

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.

Five resistors are connected purely in parallel to a battery of
24 volts. Three of these resistors are equal and the current
through each is I. The current through the fourth resistor is 3.6
times larger than I, and the current through the fifth resistor is
4.7 times smaller than I. What is the power dissipated, in Watts,
of the fifth resistor if the equivalent resistance of all five
resistors is 13 Ohms?
CORRECT ANSWER IS 26.1!!!!!

Two resistors, 37.2 and 91.1Ω, are connected in parallel. The
current through the 91.1-Ω resistor is 3.27A. (a) Determine the
current in the other resistor. (b) What is the total power supplied
to the two resistors?

Two
resistors, 45.4 and 76.6Ω, are connected in parallel. The current
through the 76.6-Ω resistor is 2.38A. (a) Determine the current in
the other resistor. (b) What is the total power supplied to the two
resistors?

A current of 20 A enters a branch point leading to three
resistors connected in parallel. The three resistors have
resistances 5 ohms, 8 ohms, and 10 ohms. What is the current (in
amperes) through the 10-ohms resistor?
A.2.08
B.8.16
C.4.71
D.3.06
E.None of these

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.

How many 0.5WW resistors connected in parallel, each of the same
resistance, must be used to produce an equivalent 4.0 kΩkΩ , 4.5 WW
resistor?

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