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Electricity and Circuits
Page 3
Questions (401)
Calculate the total energy developed in 5minutes by the system 1.2 in series 40ohms and 4.0ohms in series and a voltage of 12,
4 answers
asked by
Moavenze
834 views
Two resistors when connected in series to a 120-V line use one-fourth the power that is used when they are connected in
4 answers
asked by
Allen
5,787 views
Find the voltage across each resistor in a series circuit. Note: R is the lowest value and all others are multiples of that
4 answers
asked by
anonymous
957 views
if the resistance is halved and the voltage is not changed, what will happen to the current in resistive circuit?
4 answers
asked by
Anonymous
4,974 views
Two 6.0 μF capacitors, two 2.2 kΩ resistors, and a 14.5 V source are connected in series. Starting from the uncharged state,
4 answers
asked by
Taylor
1,610 views
What is the total resistance of two 8Ω resistors in parallel?
Show work. THANK YOU!
4 answers
asked by
Peter
1,762 views
The total charge in an electrical circuit as a function of time is given by q=t/t^2+1 coulombs. Find the maximum charge q.
Please
4 answers
asked by
Liz
699 views
When resistors are connected in parallel . . .
Is the combined resistance smaller or larger than the individual resistances? Is
4 answers
asked by
altaif
1,385 views
Am i correct?
If a 10.0 kW device pulls 20.0 A of current, what voltage exists across it? A. 5.0 *10^0 V B. 5.0 *10^1 V C. 5.0
5 answers
asked by
Me and I
2,002 views
A 100 W lamp is connected to 120 V, and its current is measured. A resistor is added to the lamp to reduce the current to half
4 answers
asked by
Billy
1,749 views
Consider a battery that has Vt = 12.0 V when it is not connected to a circuit. When a
10.0- resistor is connected with the
4 answers
asked by
anna
1,391 views
Show all steps
The maximum number of volts, E, that can be placed across a resistor is given by the formula E=sq root(PR), where
4 answers
asked by
Betty
1,710 views
) A 60-ohm resistor,90-ohm and a 120-ohm resistors are connected in parallel, and the combination is
connected across a 12-volt
4 answers
asked by
Ma christina
920 views
when a battery is connected to a 100-Ω resistor, the current is 4.00 A. When the same battery is connected to a 449-Ω
4 answers
asked by
Chuck
1,481 views
An electrical source with internal reistance r is used to operate a lamp of resistance R. What fraction of the total power is
4 answers
asked by
Roy
1,372 views
two resistors , 47 ohm and 82 ohm are connected in series across a 45 V battery. what is the current in the circuit ?
4 answers
asked by
apriel
1,794 views
What is the current produced by a 9-volt battery flowing through a resistance of 2 x 10^-4 ohms?
4 answers
asked by
Javier
1,695 views
The average power dissipated in a stereo speaker is 54 W. Assuming that the speaker can be treated as a 4.0- resistance, find
4 answers
asked by
rick
814 views
Draw two lamps and a battery of 12 volts calculate the current in each lamp and the voltage across each lamp if the resistance
1 answer
asked by
Iskalabu
335 views
A circuit with a resistance of 240 ohms is given a voltage of 60 Volts. What is the calculated current, in amps, that will run
4 answers
asked by
Abby
2,225 views
A current of 0.2 amps passes through a 3 ohm resistor. The resistor is connected to a 6v battery and an unknown resistor. what
4 answers
asked by
Anonymous
1,596 views
If two wires P and O each of the same length and same material,are connected in parallel to a battery. The diameter of P is half
4 answers
asked by
Roy
1,138 views
A 10 ohm resistor and a 20 ohm resistor are connected in parallel. What is the equivalent resistance of this setup?
3 answers
asked by
Anonymous
2,081 views
A 6 ohm, 5 ohm, and 8 ohm resistor are connected in parallel with a 30 V battery. What is the total resistance and the current
4 answers
asked by
PLS HELP ME FAST
832 views
A hair dryer uses 3.0 amps and 120 volts. What is the resistance?
i need help ^^^
4 answers
asked by
Morgan
2,013 views
A cell of emf 2v and internal resistance of 1ohms passes a current through an external load of 9ohms.calculate the potential
6 answers
asked by
Carina
1,934 views
An old battery with an emf of 9.0 V has a terminal voltage of 7.8 V when it is supplying a current of 1.5 mA. What is the
3 answers
asked by
mercedes
1,308 views
Your lab partner says that a battery provides not a source of constant current, but a source of constant voltage. Do you agree
6 answers
asked by
rebekah
3,128 views
Part of a circuit has two resistors connected in parallel as shown in the figure. R(1) is a constant resistor of 10 ohm, while
4 answers
asked by
NEED HELP NOW!
3,159 views
When a pair of identical resistors is connected in series which of the following is the same for both resistors: voltage across
7 answers
asked by
Shay
2,480 views
35 amps of current goes through a 40 amp fuse. What happens?
25 amps of current goes through a 15 amp fuse. What happens? Think
3 answers
asked by
Anonymous
2,733 views
Three circuit elements with resistances R1, R2, and R3 are connected in parallel to a voltage source. Which circuit element will
4 answers
asked by
Unknown
120 views
Determine the voltage at each point in Figure 83 with respect to the negative side of the battery.
3 answers
asked by
tabish
118 views
three resistors of 2ohm, 3ohm and 4 ohm are connected in (a) series (b) parallel. find the equivalent resistance in each case
4 answers
asked by
ganga
2,880 views
ten identical resistors connected in parallel have an equivalent resistance of 2 ohm.when they are connected in series what will
3 answers
asked by
Anonymous
1,847 views
A 24V lamp has a resistance of 8.0 ohms. What resistance must be placed in series with the lamp if it is to be used in a 117V
3 answers
asked by
John Q
1,015 views
A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force. The resistance
4 answers
asked by
Dave
3,279 views
a 6.0 kW electric oven is connected to a fuse box by a cable of resistance 0.25 ohms. when the cooker is switched on at full
3 answers
asked by
eleena
1,117 views
Does more current “flow” out of a battery than into it? Does more current “flow” into a lightbulb than out of it?
4 answers
asked by
Antoine
4,014 views
Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in
3 answers
asked by
PLEASE HELP
3,079 views
A student wants to build a circuit with 4 light bulbs and one bell. The student wants place a switch in the circuit so only one
3 answers
asked by
Juan
679 views
If the first (horizontal) resistor had zero resistance, what would be the initial voltage across the capacitor? Express your
3 answers
asked by
J1
356 views
Consider a small module based on interconnected tandem cells of hydrogenated amorphous and microcrystalline silicon as depicted
4 answers
asked by
Ram
1,055 views
a)In the series circuits, what do you notice about the voltage across each resistor compared with the voltage of the battery?
4 answers
asked by
Mariah
926 views
An ECG monitor must have an RC time constant less than 100 μs to be able to measure variations in
voltage over small time
2 answers
asked by
carolyn
1,069 views
2. How many cells connected in series, each having an EMF of 1.5 V
and internal resistance of 0.2 Ω would be required to pass a
4 answers
asked by
khalid
1,577 views
a 75w and 50 w incandescent light bulbs are designed fot use with the same voltage. what is the ratio of the resistance of the
4 answers
asked by
josh
3,022 views
The voltage, V, in volts, applied to an electric circuit can be modeled by the equation
V= 167sin (120 pi x) where x is the time,
3 answers
asked by
--
933 views
a flashlight has four 1.5-volt batteries the bulb has a resistance of 2.4 ohms. what is the amerage of the curcuit
2.5 a need
3 answers
asked by
the real BARNY THE DINO
188 views
The diagram below depicts three different circuits that light a bulb. The batteries are identical 1.5 V cells, and the light
4 answers
asked by
physics
590 views
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