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Electricity
Page 5
Questions (1,596)
if three resistors are connected in series across a 12 V battery and the voltage drop across one resistor is 3 V and the voltage
5 answers
asked by
Camille
2,481 views
what causes the current in a loudspeaker to go backwards and forwards
7 answers
asked by
noor
1,245 views
What is the conclusion about current in a series electric circuit
4 answers
asked by
Lesedi
2,893 views
Eighteen-gauge wire has a diameter of 1.024 mm. Calculate the resistance of 19 m of 18 gauge lead wire at 20°C.
5 answers
asked by
Joe
2,841 views
In an electricity experiment, a 1.30g plastic ball is suspended on a 56.0cm long string and given an electric charge. A charged
4 answers
asked by
Dib
4,719 views
1. A typical household circuit is capable of carrying 15.0 Amps of current at 120 V before the circuit breaker will trip. How
4 answers
asked by
Jay
1,755 views
A 40 W (120V) light bulb has a tungsten filament of thickness 0.035 mm. The filament's operating temperature is 1500 degrees C.
P
5 answers
asked by
JOTHEY
5,420 views
A household receives a $155 electricity bill. The cost of electricity is $0.129/kWh.How much energy, in joules, did the
5 answers
asked by
Anonymous
2,624 views
A battery has an internal resistance of 0.016 and an emf of 9.00 V. What is the maximum current that can be drawn from the
4 answers
asked by
Anonymous
2,943 views
A plastic rod is rubbed against a wool shirt,
thereby acquiring a charge of −4.9 µC. How many electrons are transferred from
6 answers
asked by
Bob
4,894 views
an electric drill rated at 400 W is connected to a 240 v. how much current does it draw?
explain your answer
5 answers
asked by
sam
1,357 views
The potential difference between a storm
cloud and the ground is 2.13 × 108 V. If a bolt carrying 2 C falls from a cloud to
4 answers
asked by
Davie
2,605 views
The electric potential at x = 3.0 m is 120 V, and the electric potential at x = 5.0 m is 190 V. What is the electric field in
4 answers
asked by
Cal
4,996 views
How long will it take an electric current of 0.15ampere to deposit all the copper from 500ml 0.15 M copper sulphate solution
4 answers
asked by
Praful Gupta
4,190 views
Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the
4 answers
asked by
nitz
2,554 views
An electrical circuit switches instantaneously from a 3 volt battery to a 23 volt battery 6 seconds after being turned on.
4 answers
asked by
nicole
1,297 views
A resistor R is connected to a 12 V battery. The total current increases five times when a 400 Ohm resistor is added in parallel
4 answers
asked by
Zabe
796 views
What work is done when 6.0 C is moved through an electric potential difference of 1.5 V?
4 answers
asked by
Anonymous
1,235 views
A battery of e.m.f. 6.0 V, and internal resistance 1.0 ohms is connected to a resistor and drives a current of 125 mA through
4 answers
asked by
Julia
1,629 views
Use Ohm’s Law to determine the resistance in a circuit if the voltage is 12.0 volts and the current is 4.0 amps.
A.8.0 ohms B.
6 answers
asked by
Hehe ;)
4,255 views
Air isn't a perfect electric insulator, but it has a very high resistivity. Dry air has a resistivity of approximately 3 x 10^13
4 answers
asked by
JOTHEY
2,003 views
A resistor is to have a constant resistance of 30(ohm), independent of temperature. For this, an aluminum resistor with
4 answers
asked by
Nay Myo Myint Lwin
1,780 views
A person notices a mild shock if the current along a path through the thumb and index finger of one hand exceeds 80 ìA.
In
4 answers
asked by
crystal
772 views
how much current flows through a circuit if the resistance is 4 ohms and there is a 12-volt battery?
3 answers
asked by
Ajnaba
755 views
How many electrons must be removed from an electrically neutral silver dollar to give it a charge of +2.8 µC?
9 answers
asked by
rick
2,458 views
How much current does a flashlight use if its battery supplies 3.0 Volt and the bulb has a resistance of 4.0 Alpha
4 answers
asked by
Kyle
2,902 views
Several light bulbs, each of resistance 1.5 Ω, are connected in a series across a 120 V source of emf. If the current through
4 answers
asked by
ashley --- HELP PLEASEE!!!
1,833 views
find the current produced when a voltage of 60v is applied to a resistance of 15
4 answers
asked by
janaurius
1,555 views
a ball with a mass of 0.150 g and positive charge of q=41.2 C is suspended on a string of negligible mass in a uniform electric
2 answers
asked by
Matt
1,013 views
The heating element of an electric oven is designed to produce 3.3 kW of heat when connected to a 240-V source. What must be
4 answers
asked by
Jenny
3,389 views
four 9-volt barreries are connected in parallel. How much voltage is active across the circuit?
4 answers
asked by
Lizette
964 views
if a cell supplies a current of 0.5a when it's emf is 2v and internal resistance is 1 ohms calculate it's external resistance
4 answers
asked by
poppy👌🤔
753 views
The meter reads 7.84 mA when the switch is in position A. What is the resistance of R4?
R1=220 Ω R2=470 Ω R3=510 Ω VS =12 V I
4 answers
asked by
Mike
921 views
Suggest an
experiment to compare the conductivity of electricity by iron, copper, aluminium and zinc. Perform the experiment and
4 answers
asked by
rohit
1,228 views
when you turn on a lamp, then turn it off, explain what happens to the circuit.
7 answers
asked by
eddie
1,374 views
You plot a graph of voltage versus current. What is the slope? What are the units for the slope? How do you get the unit for the
3 answers
asked by
Avril
1,484 views
A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, and that
4 answers
asked by
Anonymous
2,343 views
When the circuit of a switch is closed, which statement is true?
3 answers
asked by
Hello
370 views
Which option most accurately describes alternating current?
current that moves in one direction throughout a circuit current that
4 answers
asked by
HELP!
1,951 views
A 100-W light bulb has an average lifetime of 800 h. how many electrons Move through the bulb in its life?
4 answers
asked by
Jared
865 views
A 12 v battery has a capacity of giving 80 amperes of current for one hour. How long can the battery keep a 60W lamp on?
4 answers
asked by
Tamax
1,703 views
Six charge equal to Q are placed at the corners of regular hexagon of each side x,what is the electric potential at the
3 answers
asked by
Ankit
2,659 views
A Van de Graaff generator is a device for generating a large electric potential by building up charge on a hollow metal sphere.
4 answers
asked by
MMM
1,839 views
The amount of current flowing into an electrical circuit varies inversely as the resistance in the circuit. When the resistance
3 answers
asked by
Anonymous
1,855 views
what is the power of a 6 ohm bulb when 3 of such bulbs ar econnected in a 12 volt parallel circuit?
3 answers
asked by
Hannah
847 views
An electric kettle is rated 2kilowatt,240 volt and when filled with cold water takes 5mins to boil. Calculate the resistance of
3 answers
asked by
Juliet
354 views
Consider a DC circuit that consists of a 6V battery and 3 resistors (R1, R2, and R3).
Resistors R1 and R1 are wired in parallel,
2 answers
asked by
hi
792 views
How much copper would be plated by a current of 1.5 A in a time of 1.0 h?
3 answers
asked by
Lily
555 views
How does the equivalent resistance of a series circuit compare to the resistance values of the individual resistances in the
3 answers
asked by
|-/
2,413 views
Two identical resistors are connected in parallel across a 26-V battery, which supplies them with a total power of 9.8 W. While
3 answers
asked by
Anonymous
910 views
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