Questions LLC
Login
or
Sign Up
Ask a New Question
Electricity and Circuits
Page 7
Questions (401)
In a series circuit, the power source is 9-volt battery and three resistors.
R1=7ohm R2=9ohm R3=2ohm What is the total resistance
2 answers
asked by
Cherie
565 views
When all parts of a circuit are composed of conducting materials, the circuit is said to be
A. parallel C. open B. shorted D.
1 answer
asked by
nelly
559 views
What does electric current measure?(1 point)
Responses how much electrical energy moves in a circuit how much electrical energy
4 answers
asked anonymously
107 views
Two bulbs are connected in parallel across a source of emf EMF = 10.0V with a negligible internal resistance. One bulb has a
2 answers
asked by
sarah
529 views
which has a greater electrical resistance, a filament in a light bulb or a copper conducting wire.and how do you know this?
3 answers
asked by
jen
538 views
Consider a five-pointed star made of resistors as shown below. Each resistor has resistance R=6 Ω. Find the equivalent
2 answers
asked by
ayan
523 views
if 3 resistors of 2,3 and 5 ohms are connected in parallel and a battery of 10 volts is applied across it, then what is the
2 answers
asked by
ashwita
512 views
The battery above is allowed to operate for 8 hours. Describe how this battery works and be
sure to answer the tollowing
1 answer
asked anonymously
22 views
Bulb P is rated 60 W, 110 V, and bulb Q is rated 100 W, and 110 V. Which of the bulbs has the higher resistance?
they have the
2 answers
asked by
Jane
498 views
A 18.7 ohm and a 24.3 ohm resistor are connected
parallel. A difference in potential of 41.5 V is applied to the combination.
1 answer
asked by
maria
509 views
You are in the lab with a 10 V battery. You have a 10 W light bulb and you want to put 1/2 A of current through the light bulb
1 answer
asked by
jamie
509 views
Why are household lamps are not connected series?
2 answers
asked by
Penny
482 views
i have a picture of a battery a light bulb and a wire. i know to light the bulb it has to be a closed circuit. does it have to
1 answer
asked by
kayla
485 views
I have a question about resistors...Wouldn't a 40-ohm resistor be the hottest while the 20-ohm resistor is the coolest or is it
2 answers
asked by
Priscilla
487 views
Three resistors of resistance 2ohms, 3ohms, 2ohms connected in series afterwards parallel. Calculate the effective resistance
2 answers
asked by
Obaloluwa
472 views
Suppose that the resistance between the walls of a biological cell is 3.00 x 10^9 Ω.
(a) What is the current when the potential
2 answers
asked by
ali-1
464 views
Find the currents in the unbalanced Wheatstone bridge (Fig. 5.1). Assume that v0 = 1.5V,r1 = r2 = 100 ,r3 = 150,rx = 120,ra =
2 answers
asked by
Kedir
459 views
A high voltage unit has an internal resistance of 50 mega ohms. On open circuit, the potential difference across its output is
1 answer
asked by
Priya
491 views
In the parallel circuit, if the current put out
by the battery is 3 A and the current through R1 is 1 A, what is the current
2 answers
asked by
maria
654 views
A 6.0 volt battery is hooked up to a light bulb, whose resistance is 3.1 ohms. How many electrons would leave the battery per
1 answer
asked by
David
484 views
the voltage E in volts in a circuit after t seconds (t70) is given by E=12 sin(120pi times t). After how many seconds does the
1 answer
asked by
Matt
472 views
What current would flow in an ordinary 115 V household circuit, if a 1430 W hair drier and a 1000 W microwave oven were
2 answers
asked by
Joan
480 views
Battery supplies a potential difference of 6v
At a certain temperature the current in the 45ohms resistor is 0.08A How would you
1 answer
asked by
peter
474 views
A 100 watt lamp glows brighter than a 25 watt lamp. What do you know about the resistences of these two lamps. How can you
1 answer
asked by
Michael
478 views
A microwave runs off a 110. V circuit and draws 7.00 A of current. How much water would
be required to run the microwave for 10.0
1 answer
asked by
john jhon
459 views
this question is about resistors in parallel.
If i have a circuit, and it starts at point A with one resistor, then splits to
3 answers
asked by
Trace
470 views
Consider a circuit with a capacitor, battery, wire, and bulb. Describe the source(s) charge during capacitor charging.
3 answers
asked by
Ronnie
462 views
if the area of cross section of a wire in a circuit is doubled its resistivity?
(a)becomes one fourth,(b) becomes half (c)
1 answer
asked by
Mumtaz
452 views
Two resistors of equal resistance are connected in series with each other and are connected to a battery that produces a
1 answer
asked by
Stan
457 views
How much power is dissipated by each resistor in the figure below, in which V = 24 V and R2 = 15 ?
1 answer
asked by
ananomyus
440 views
may be this is simple and obvious question but i am really not getting this.in my physics practicals i was doing potentiometer
1 answer
asked by
zoha
455 views
something connects a 16 resistor, 23 resistor, and 34 resistor in series and then connects the arrangement to a 36 v dc source.
1 answer
asked by
Tammy
447 views
Your goal is to make the light bulb light up the brightest. What are four things you can do to make the light bulb be the
1 answer
asked anonymously
69 views
The model shows a simple flashlight.
Which statement BEST explains why batteries must be facing the correct direction in a
1 answer
asked by
Bray
45 views
The rms current output in a circuit is 4.67 A. What is the maximum current?
1 answer
asked by
Sakura
434 views
what does electric current measure ?
a. how quickly electrical energy moves in a circuit b. how well electrical energy moves in a
1 answer
asked by
shhh
20 views
A battery is an example of which of these key vocabulary words?
a. circuit b. switch c. power source d. load
1 answer
asked by
Con on see
11 views
What is the total resistance is a series circuit with the following values. Please solve the problem with your answer expressed
1 answer
asked anonymously
13 views
Explain how both conductors and insulators are used in the charging cord that plugs a laptop into an outlet.
1 answer
asked by
Help! Please!
18 views
Solve for the equivalent resistance in each of the scenario: A 20{,25{,20{ Resistor connected in parallel
1 answer
asked by
Yt
22 views
If three resistor 2n, 3n and 5n are connected in parallel in a circuit. Calculate the equivalent resistance of the combination
1 answer
asked by
AbubakargarbaHassan
22 views
a person plugs a power cord into an electrical outlet in the wall. the power cord is covered in black rubber. which statement is
1 answer
asked anonymously
26 views
A person plugs a power cord into an electrical outlet in the wall. The power cord is covered in black rubber. Which statement is
3 answers
asked anonymously
30 views
A person plugs a power cord into an electrical outlet in the wall. The power cord is covered in black rubber. Which statement is
1 answer
asked anonymously
20 views
circuit A has a resistance of 7.5 ohms, and circuit B has a resistance of 5 ohms. which statement about the circuits must be
1 answer
asked anonymously
19 views
calculate the resistance of R1 if V1 reads 3V
1 answer
asked anonymously
12 views
Which type of circuit has a string of lights and one light goes out but the others stay lit?
Responses series series parallel
1 answer
asked anonymously
32 views
An electrical circuit has an expected current of 80 A an electrician measures the current in the circuit at 120 A, which
1 answer
asked anonymously
25 views
An alternating current represented by the equation i= 4,5 sin (100×pie×t) flows through a certain series circuit. The time
1 answer
asked anonymously
27 views
Which purpose does a light bulb serve in a circuit?(1 point)
Responses wire wire cell cell load load switch
1 answer
asked anonymously
30 views
Pages
1
2
3
4
5
6
7
8
9
Parent Categories (6)
Mathematics
Physics
Physics and Electronics
Science
Science and Physics
Science and Technology