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Electricity
Page 5
Questions (1,551)
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
2,620 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
2,936 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
4,889 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
1,352 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
2,604 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
4,182 views
a d'arsonval meter movement deflects to 0.8mA. what is the peak value of the alternating current if the instrument uses
4 answers
asked by
Anonymous
1,686 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
2,551 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
792 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
1,234 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
1,626 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 ;)
4,254 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
1,998 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
1,775 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
767 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
753 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
2,454 views
Help po kong paano ma sasagot po eto the current I varies directly as the electromotive force E and inversely as the resistance
4 answers
asked by
Even rose villar
3,052 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
2,899 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!!!
1,829 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
1,012 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
3,385 views
four 9-volt barreries are connected in parallel. How much voltage is active across the circuit?
4 answers
asked by
Lizette
962 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👌🤔
750 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
920 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
1,370 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
1,482 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
2,339 views
When the circuit of a switch is closed, which statement is true?
3 answers
asked by
Hello
369 views
Which option most accurately describes alternating current?
current that moves in one direction throughout a circuit current that
4 answers
asked by
HELP!
1,950 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
861 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
1,700 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
2,655 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
1,838 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
1,848 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
843 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
790 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
553 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
|-/
2,408 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
907 views
A current of 1 A is maintained in a simple circuit with a total resistance of 2.5 Ω. How much heat is generated in 4.0 s?
4 answers
asked by
Joe
1,525 views
If your body develops a charge of -18 (microcoulombs), how many excess electrons has it acquired?
4 answers
asked by
Anonymous
1,781 views
Electrons move through a certain electrical circuit at an average speed of 1.7 x 10-2 m/s. How long (in minutes) does it take an
3 answers
asked by
Redgy22
1,734 views
A certain copper wire has a resistance of 12.0 \Omega.At what point along its length must the wire be cut so that the resistance
3 answers
asked by
rabiya
1,931 views
If a doubly-ionized oxygen atom (O–2) is accelerated from rest by going through a potential difference of 20 V, what will be
3 answers
asked by
Alinkashia
951 views
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