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Electrical Circuits
Page 7
Questions (427)
A 30-W led bulb and a 90-W led bulb are wired in the parallel to a 120-V source. You plug in a third bulb in parallel with the
2 answers
asked by
Blake
610 views
Draw an open circuit that consists of 2 sets of 2 cells connected in series, connected in [arallel with each other. Add a
2 answers
asked by
Summer
624 views
A 65.0-Ù resistor is connected in parallel with a 117.0-Ù resistor. This parallel group is connected in series with a 22.0-Ù
2 answers
asked by
Anonymous
634 views
A string of 26 identical Christmas tree lights
are connected in series to a 120 V source. The string dissipates 63 W. What is the
1 answer
asked by
Anonymous
610 views
A series LC circuit has capacitance 50 and inductance of 500. Calculate the frequency at which the circuit will resonate.(take
2 answers
asked by
Ms Fatimah
574 views
I'm totally confused and this is due Monday-
We're dealing with electrical circuits and I have to construct a circuit with
6 answers
asked by
Aubrey
638 views
An electric kettle operates at 110V. What is the resistance of the kettle if the power is 1.5kW?
8.1 Ω 1.4 Ω 81 Ω 14 Ω Both A
2 answers
asked by
Herp
597 views
A 2.0ìF capacitor, a 13ìF capacitor, and a 20ìF capacitor are connected in parallel. What is their equivalent capacitance?
4 answers
asked by
skip
591 views
A 20.0 \mu F capacitor initially charged to 20.0 \mu C is discharged through a 1.90 k\Omega resistor. How long does it take to
2 answers
asked by
john
583 views
The ammeter your physics instructor uses for in class demonstrations has a resistance R(g)= 60 ohms and requires a current of
2 answers
asked by
Jp
559 views
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that the current
3 answers
asked by
Anonymous
572 views
what is one basic step to reduce a combination circuit to its simplest form
2 answers
asked by
Anonymous
557 views
The function of those little black transformers that clog your power strips is to step down line voltage to run small electronic
2 answers
asked by
seanmarch58
553 views
During a “brownout,” which occurs when the power companies cannot
keep up with high demand, the voltage of the household
3 answers
asked by
Trace
559 views
one basic step to reduce a combination circuit to its simplest form is to solve for each?
2 answers
asked by
Anonymous
538 views
A ammeter is to be constructed using a galvanometer that has a 2.00 mA full-scale deflection and internal resistance of 50.0
2 answers
asked by
Anonymous
547 views
An ac generator supplies an rms voltage of 5.00 {\rm V} to an RL circuit. At a frequency of 21.0{\rm kHz} the rms current in the
2 answers
asked by
AJ
549 views
A 7uF capacitor is charged to a potential difference of 110V The electrical energy stoed in the capacitor is
(4.2x10^-2 was the
2 answers
asked by
alex
539 views
The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 2 amperes when
2 answers
asked by
willa
522 views
The graph below represents the relatonship between the potential difference across a metal conductor and the current through the
2 answers
asked by
Priscilla
544 views
an infinite ladder network of resistance is constructed with 1 ohm and 2 ohm resistances .calculate equivalent resistance
2 answers
asked by
maneet
505 views
A filament bulb and a resistor are connected in series to a battery. Which of the following will contribute to the load of the
2 answers
asked by
Need some help
542 views
A filament bulb and a resistor are connected in series to a battery. Which of the following will contribute to the load of the
3 answers
asked by
Need some help
522 views
A copper wire with a criss section of 5 mm^2 and 2 km long has an effective resistance of 2Ohms.
a) Find the power lost in this
4 answers
asked by
Lana
501 views
Two resistors connected in series have an equivalent resistance of 783.4 Ω. When they are connected in parallel, their
2 answers
asked by
priya
509 views
How do I use Kirchhoff's First Law -- the law of conservation of energy and the law of conservation of charge to prove the
1 answer
asked by
Art
511 views
For what combination of parallel and series resistors will resistors of 25 ohms, 100 ohms, 50 ohms, and 50 ohms have a total
1 answer
asked by
Anonymous
524 views
If this resistor is made of a material of cross- sectional area 4×10^-4cm^2 and resistivity 2×10^-6ohmcentimeter, calculate
2 answers
asked by
Ms Fatimah
501 views
Three resistors, each of resistance 6 Ω, are connected in such a way that that they form the three sides of a triangle. What is
2 answers
asked by
m
496 views
The current I in an electrical conductor varies inversely as the resistance r of the conductor. The current is 6 amperes when
2 answers
asked by
De'andre
517 views
what would happen to the impedance of a series circuit containing an inductor, capacitor and resistor if the supply frequency is
2 answers
asked by
Andy
491 views
Which equipments can be used to verify ohm's law
1 answer
asked by
Kelvin
22 views
By our sign conventions, if a battery is traversed in the actual direction of the current in it, what can you say about the sign
1 answer
asked by
John
501 views
A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is
1 answer
asked by
T
475 views
What happens when you plug more equipment into apower board in terms of it's resistance and current. Explain.
4 answers
asked by
BP
479 views
Two resistors 3 Ù and 6 Ù are connected in parallel across a 6 V battery. What is the current flow through the 3 Ù resistor?
3 answers
asked by
Maddy
479 views
what happens to the amount of power a light bulb uses if the resistance of the bulb is increased?
2 answers
asked by
kylie
479 views
I'm stumped on what formula to use for the following question.
A 1.5V battery does 4.5*10^2 J of work in 120s. Calculate the
5 answers
asked by
Kate
482 views
A resistor 3 Mega ohms and a capacitor of 350 mirco F are connected in series to a 50V power supply. Calculate the time
4 answers
asked by
susan
477 views
I'm doing a report on my experiment right now where you had to test out the voltage and current of 2 resisters and a light globe
3 answers
asked by
TP
483 views
A 50 ohm lamp and a 10 ohm electric iron are connected in series to a generator delivering 120 V.
The current through the lamp
2 answers
asked by
Kriti
504 views
This question really has me stumped and I don't know why, I seem to have forgotten the process . . .
A model electric train
3 answers
asked by
Melinda
481 views
A resistor of resistance R is connected to a power supply of constant EMF E=12 V and internal resistance r=3 Ω . The energy
2 answers
asked by
intermediate player PLEASE HELP
492 views
What happens to a bulb when a conductor is wired in series with the bulb (bulb lights or dosen't light)? Is the swich open or
1 answer
asked by
Javier
490 views
a 1200W machine operates at 120V. what is the resistance of the machine?
2 answers
asked by
serena
476 views
A 14.5
metal wire is cut into three equal pieces that are then connected side by side to form a new wire the length of which is
1 answer
asked by
Anonymous
474 views
the effective resistacce of two resistors connected in series is 100 ohm.when it connected in parallel it is 24 ohm.determine
2 answers
asked by
yzr
486 views
Hey all.
I have to find Thevenin’s UTHEV and RTHEV, which can replace the circuit found here:
5 answers
asked by
Muusen
470 views
what is the applied voltage on a circuit in which .5 amperes current is flowing and 10 W is generated?
1 answer
asked by
kelley
469 views
suppose you have 3 resistors, each of value 0f 30 omega. List all the different resistances that you can obtain by combining
1 answer
asked by
Sykox
459 views
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