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Electric Circuits
Page 4
Questions (769)
A 72-ohm coil of wire is connected in series with an adjustable resistor (rheostat) whose resistance can be varied from 0 to 88
4 answers
asked by
gilberT
5,172 views
A circuit is constructed with a 20-V power supply and two resistors in series: R1 = 4.0 ohms, and R2 = 2.0 ohms. What is the
5 answers
asked by
jasmine
2,406 views
A 15-volt power supply is used to power a circuit with two resistors in series. The voltage drop across R1 is 5 volts. What is
5 answers
asked by
jasmine
2,496 views
A 14.1 μF capacitor is charged to a potential of 45.0 V and then discharged through an 80.0 Ω resistor.
(a) How long after
5 answers
asked by
Alyssa
2,835 views
Three resistance of 8,12, and 24 ohms are in parallel. This combination is in series with another parallel of 10,10, and 20
5 answers
asked by
Mycah
3,224 views
An automobile battery has an emf of 12.6 V and an internal resistance of 0.0500 . The headlights together present equivalent
5 answers
asked by
priya
7,910 views
3) What is the emf of a battery with an internal resistance of 0.15 if the battery delivers 1.5 A to an externally connected 5.0
4 answers
asked by
Anonymous
2,252 views
Two capacitors C1 = 7.00 µF and C2 = 11.0 µF are connected in series to a 9.00 V battery.
(a) Find the equivalent capacitance
4 answers
asked by
HELP!!!
1,554 views
The current in a 51 resistor is 0.14 A. This resistor is in series with a 28 resistor, and the series combination is connected
4 answers
asked by
ali-
1,997 views
A 1.0 μF capacitor is being charged by a 6.0 V battery through a 10 MΩ resistor. I need help solving these parts:
A) Determine
5 answers
asked by
Jimmy
3,138 views
Three impedences are connected in series across a 200V,50Hz ac supply. The first impedance is a 10 ohm resistor , the second
4 answers
asked by
Kate
1,650 views
A string of 8 christmas tree lights connected in series to a 120v source draws a current of 0.75A.can any one show me how to
5 answers
asked by
Alemu
2,232 views
Two bulbs are connected in parallel across a source of emf EMF = 10.0V with a negligible internal resistance. One bulb has a
5 answers
asked by
sarah
4,517 views
A 6.30 μF capacitor that is initially uncharged is connected in series with a 4300 Ω resistor and a 501 V emf source with
4 answers
asked by
Jimmy
1,707 views
A 9500 pF capacitor holds plus and minus charges of 16.5*10-8 C. What is the voltage across the capacitor?
4 answers
asked by
electric field
4,026 views
1. A 40Ω , 20Ω and 60Ω resistor is connected in a parallel circuit.
Which resistor would have the greatest current passing
4 answers
asked by
Liz
2,359 views
In a series L.C.circuit the inductant and capacitant are 0.5H and 20mf respectively. calculate the resonance frequency of the
4 answers
asked by
Blue
996 views
A circuit contains sic 60-W lamps with a resistance of 240-ohm each and a 10.0-ohm heater connected in parallel. The voltage
4 answers
asked by
Priscilla
1,688 views
What resistance must be connected in parallel to 60 ohms to reduce the combined resistance to 15 ohms?
4 answers
asked by
melissa
2,938 views
a 9v battery is in series with a 10 ohm resistor, a 20 ohm resistor, and a 30 ohm resistor. What is the power absorbed by the 10
4 answers
asked by
Bobby
2,767 views
C1=3.00uF and Vab = 120V. The charge on capacitor C1 is 150 uC. Calculate the voltage across the other two capacitors.
4 answers
asked by
chyenne
2,046 views
I need help with this question, A 4-ohm resistor is connected in parallel with a 6 ohm resistor. What is the total resistance of
4 answers
asked by
Michael
1,742 views
Three dry cells are connected first in series and then in parallel. The individual cells have voltages of 1.5 V, 1.8 V, and 2.0
4 answers
asked by
Lily
2,419 views
A battery with an emf of 7.9 V and internal resistance of 1.37 Ω is connected across a load resistor
R.If the current in the
4 answers
asked by
Tiffany
979 views
The figure below shows a series RLC circuit with a 20.0-Ω resistor, a 390.0-mH inductor, and a 23.0-µF capacitor connected to
5 answers
asked by
AAA
1,476 views
1.) Draw a set of 1.5-volt cells in a series circuit so that the total battery voltage is 9 volts. A.) how many cell does it
4 answers
asked by
nitz
3,440 views
A 10uf capacitor is charged by an 80v supply and then connected across an uncharged 20uf capacitor calculate the final p.d
4 answers
asked by
Philemona
577 views
A source of e.m.f 110v and frequency 60hz is connected to a resistor, an indicator and a capacitor in series. When the current
5 answers
asked by
Ayo
2,012 views
Find the equivalent resistance of the combination of resistors shown in the figure below.
R1=1.52 microohms R2= 21.1microohms
4 answers
asked by
Tee Jones
3,045 views
A coil takes a current of 10.0 A and dissipates 1410 W
when connected to a 230 V, 50 Hz sinusoidal supply. When another coil is
4 answers
asked by
lolo
3,380 views
An uncharged capacitor is connected to the terminals of a 3.0 V battery, and 9.0 uC flows to the positive plate. The 3.0 V
4 answers
asked by
JOTHEY
3,325 views
A circuit consisting of three resistance 12ohm, 18ohm and 36ohm respectively joined in parallel, and connected in series with
5 answers
asked by
Ann
4,108 views
How long will it take the voltage across the capacitor in an RC circuit to discharge 75% of its initial charged voltage if the
4 answers
asked by
Greg
1,044 views
a. Calculate the current though the 22 Ω
resistor. b. What is the voltage across ab t inypic.c om/view.php?pic=22aipe&s=4
4 answers
asked by
Anonymous
897 views
to study and change of current due to variation of resistance in an electric circuit?
4 answers
asked by
vincent d
749 views
Two light bulbs of resistance R1 and R2 (>R1) are connected in a series. Which is brighter? What if they are connected in
3 answers
asked by
Prakash Padukone
3,809 views
Six light bulbs are connected in parallel to a 9.0 V battery. Each bulb has a resistance of 3.0 ohms. What is the current in
4 answers
asked by
Laurie
2,630 views
An R-C circuit is driven by an alternating voltage of amplitude 110 V and frequency w. Define V0 to be amplitude of the voltage
4 answers
asked by
Freddy
1,079 views
A gold wire 5.90m long and of diameter 0.890 mm carries a current of 1.21A.
A)Find the resistance of this wire. B)Find the
2 answers
asked by
help
691 views
A 6v battery battery internal resistance 0.5 ohm connected to three resistors of values 3 ohm,4 ohm & 5 ohm.calculate the
3 answers
asked by
Emmanuel
896 views
A 10-volt battery is connected to a circuit with two resistors, R1 and R2, in parallel. If R1 is greater than R2, what does
4 answers
asked by
Katy
1,511 views
A loop circuit has a resistance of R1 and a current of 2.2 A. The current is reduced to 1.7 A when an additional 3 Ω resistor
4 answers
asked by
Anna
1,266 views
If one lamp of a group of five identical lamps in series is removed, the voltage across the empty socket becomes equal to the
3 answers
asked by
Anonymous
743 views
A 0.25 mF capacitor is connected to a 9.0 V battery. What is the charge on the capacitor?
3 answers
asked by
sam
2,343 views
Applying Kirchhoff’s Junction Rule, what happens to the power source and current source when the parallel circuit has two
5 answers
asked by
Abby
1,564 views
A battery, an ammeter and a variable resistor connected in series.A voltmeter is connected across fixed resisitor.The value of
3 answers
asked by
Raj
1,088 views
an ammeter of resistance 0.1ohms has a full scale deflection of 50mA .
Determine the resultant full scale deflection of the meter
4 answers
asked by
POPPY
1,320 views
An 8.0 Ω resistor and a 4.0 Ω resistor are
connected in series with a battery. The potential difference across the 4.0 Ω
3 answers
asked by
Sara
1,986 views
A 6 uF capacitor is initially charged to 100V and then connected across a 600 ohm resistor. a) what is the initial charge on the
3 answers
asked by
Owen
1,367 views
Two resistances, R1 and R2, are connected in series across a 15-V battery. The current increases by 0.050 A when R2 is removed,
3 answers
asked by
Elizabeth
1,375 views
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