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Electricity
Page 7
Questions (1,588)
Consider a closed triangular box resting
within a horizontal electric field of magnitude 7.8x104 N/C as shown in Figure.
3 answers
asked by
maram
850 views
1.
Which statement about electricity is not true? The attraction or repulsion between electric charges is called electric force.
3 answers
asked by
Bleaktuber
1,264 views
Two point charges q1=4uc& q2=9uc are placed 20cm apart.the electric field due to them will be zero on the line joining them at a
5 answers
asked by
Nosheen
1,859 views
How many electrons per second pass through a section of wire carrying a current of 0.70A?
3 answers
asked by
Marl
1,332 views
An electric lamp rated at 48w,12-v supply. Calculate the current flowing in the lamp and the resistance
4 answers
asked by
wisdom Andrew
1,466 views
An electric heating coil is immersed in a beaker of water and turned on. A current of 3.50 A floured through the coil. After the
2 answers
asked by
Anonymous
1,011 views
Two point charges of +30μC and -10μC are separated by a distance of 10cm. What is the magnitude of electric field due to these
3 answers
asked by
mike
1,622 views
A 4 ohm resistor and 10 ohm resistor are connected in series. If this circuit is connected to a 12 V battery, how much current
3 answers
asked by
Frank
770 views
When a moving coil galvanometer has a resistance of 20 ohms and gives full scale deflection of 1.5mA.calculate the potential
3 answers
asked by
Oluwaseyi
1,347 views
What is the peak current through a 400–W room heater that operates on 120–V AC power?
2 answers
asked by
Ashton
1,073 views
24 joule work is done in moving a charge of 6c between two points. Calculate potential difference between this two points.
3 answers
asked by
Jatindra Deori
885 views
A typical lightning bolt has about 10.0 C of charge. How many excess electrons are in a typical lightning bolt?
3 answers
asked by
Anonymous
3,976 views
The charge carried by one electron is e = -1.6 × 10-19 C. The number of electrons necessary to produce a charge of -1.0 C is:
3 answers
asked by
shirly
1,182 views
Electricity Rates in Florida. Florida Power & Light Company supplies electricity to residential customers for a monthly customer
3 answers
asked by
kisha
1,939 views
A hollow copper wire with an inner diameter of 0.60mm and an outer diameter of 1.8mm carries a current of 15A. What is the
3 answers
asked by
Wolf
1,318 views
A power of 200 kW is delivered by power lines with 48,000 V difference between them. Calculate the current, in amps, in these
3 answers
asked by
Julia Kate
791 views
a small pith ball carries a charge of -1.3 uc. how many excess electrons does this represent?
4 answers
asked by
ann
1,986 views
Two metal spheres having charges of +4.0 x 10^-6 coulomb and +2.0 x 10^-5 coulomb, respectively, are brought into contact and
7 answers
asked by
Dom
4,248 views
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the
4 answers
asked by
Rachal
1,371 views
A 100-Watt light bulb plugged into a 120-Volt outlet is left on for 60 seconds. How much energy (in Joules) is used up by the
3 answers
asked by
Joe
2,255 views
How can you increase the current flowing in an electric circuit?
3 answers
asked by
Ryan
565 views
1) 2 spheres of equal diameters have 15 micro coulomb charge and -10 micro coulomb charge respectively. if they are placed 5cm
3 answers
asked by
Deyo
727 views
An electric iron has a resistance of ohms. How much heat energy is produced in 10 minutes if the current passing through the
3 answers
asked by
Tyler
741 views
Imagine an airplane flying under a cloud during a thunderstorm.Do the passengers get electrocuted? EXPLAIN WHY or WHY NOT.
Should
3 answers
asked by
Sandhya
429 views
Two copper wires have equal cross-sectional areas and lengths of 2.4m and 1.3m, respectively.
What is the ratio of the current in
3 answers
asked by
Lanise
520 views
You have a 50V battery in a circuit with a single resistor R. If the resistor dissipates 200 J of energy in 5 seconds, what is
2 answers
asked by
Katie
530 views
What is the reading in kwhr of the electric meter shown in the exam figure below?
A. 0631 B. 1641 C. 1732 D. 9742 is it a
4 answers
asked by
me
2,500 views
What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5¢ per kilowatt-hour?
4 answers
asked anonymously
40 views
An average American household uses about 1.04 x 104 kWh of electricity a year. If a power station generates 2.496 * 10 ^ 11 kWh
5 answers
asked anonymously
292 views
A rectangular surface (0.13 m 0.36 m) is oriented in a uniform electric field of 570 N/C. What is the maximum possible electric
3 answers
asked by
Mary
723 views
An average American household uses about 1.04×10^64 kWh (kilowatt hours) of electricity a year. If a power station generates
2 answers
asked by
Anonymus
186 views
Use the paragraph to answer the question.
Harper had always been a curious child, wanting to know how things operated and what
4 answers
asked by
ykdonni
54 views
Read the passage and answer the questions.
Short Circuit What happens when you blow a fuse? Current flowing through a wire heats
7 answers
asked by
EMILIANO
67 views
I need help with two questions:
1) An object can only have a charge that is an integral multiple of the charge on the ___. Am I
3 answers
asked by
Sushmitha
945 views
How is the electrical ciruit made
7 answers
asked anonymously
22 views
The resistance R of wire varies directly as its length L and inversely as the square of its diameter d
a.write an equation that
2 answers
asked anonymously
48 views
A motor has a current of 2.00 A flowing through it when it is powered with a
12-volt battery. What is the power used by the
2 answers
asked by
-
43 views
A negatively charged plastic comb is brought close to, but does not touch, a small piece of paper. If the comb and the paper are
4 answers
asked by
-
52 views
A battery of 15volts and internal resistance 3ohms is connected to a resistor of resistance 20ohms calculate both terminal
2 answers
asked anonymously
52 views
Use a one page worksheet to indicate some questions ( 5 - 7 questions) with the memorandum, relating to electricity, energy, and
2 answers
asked anonymously
51 views
If it happens we have a little current...what must we do to increase it?
1 answer
asked by
Gift
57 views
Which flows through the other?
A. an electric current through an electric charge B. electrons through electric charges C. an
1 answer
asked by
Bob rob rob bob
95 views
how does the magnitude of the electrical change of objects affect the electric force between them
1 answer
asked by
sofia
99 views
Which pair of objects will have an attractive electric force?
Pair Object 1 Charge Object 2 Charge A -2 -1 B -3 +1 C +3 +1 D +1
63 answers
asked by
the real BARNY THE DINO :)
360 views
The resistance in a circuit is halved. What happens to the voltage?
V=IR (1 point) Responses The voltage remains the same. The
1 answer
asked by
the real BARNY THE DINO :)
350 views
in an electric curcit which of these is the load
wiring fan battery on-off switch
1 answer
asked by
the real BARNY THE DINO
68 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 0.4a
1 answer
asked by
the real BARNY THE DINO
90 views
×
Which anology best describes amperage turbine or mill insterted into the flow of water pressure of water moving through the
1 answer
asked by
the real BARNY THE DINO
89 views
Which of the following best describes a direct current
an electrical current that moves back and forth an electrical current that
1 answer
asked by
the real BARNY THE DINO
185 views
Observing a seth of pith balls with posotive charges, how does the distance between the pith balls affect the electrical charge?
1 answer
asked by
the real BARNY THE DINO
107 views
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