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Electricity and Magnetism
Page 2
Questions (3,284)
Two conducting spheres are isolated from their surroundings. The radii of spheres A and B are R and R/2 , respectively.
4 answers
asked by
Chris
2,420 views
What is the length of copper wire is required to produce a 4mohm resistor? Assume the diameter of the wire is 1mm and that the
3 answers
asked by
beyene dendea
979 views
An electron of charge -e and a long straight wire carrying a current I to the right are both in the plane of the page, as shown
4 answers
asked by
roga
1,552 views
1) Charges of +4uC and -6uC are placed at two corners of an equilateral triangle with sides of 0.10m. At the third corner, what
4 answers
asked by
Andrew
4,905 views
If a wire has a resistance, 1.32ohms,the length of 110cm,and an area of cross sectional of 0.00415cm,find the resistivity of the
5 answers
asked by
Sinatra
1,945 views
The voltage of the power supply in a AC-DC coupled circuit is given by the function v(t) = 130sin5t + 18, where t is time, in
3 answers
asked by
Chris
2,111 views
The resistance of a coil copper wire at 20 degree celsius is 2.21 ohms. After a current of 10 amperes has been flowing in wire
3 answers
asked by
jun
1,378 views
A negative charge of 3 x 10-4 C experiences a force of 0.12N when in an electric field. What is the magnitude of the field
2 answers
asked by
ok
187 views
Two point charges, q1 and q2, of 4.00 uc each, are placed -6.0 cm and 6.0 cm away from the origin on the x-axis. A charge q3 of
3 answers
asked by
Anonymous
1,050 views
Which of the following sentences best compares conductors and insulators?
A. Conductors and insulators allow electrons to flow
3 answers
asked by
Waylon Kennedy from connexus
1,721 views
Please help?!?
In figure 20-1, where is the field of each charge the strongest? The picture shows A. A postive charge with arrows
3 answers
asked by
Kenzie
800 views
"Two small spheres are located 0.50m apart. Both have the same charge on them. If the repulsive force is 5.0N, what charge is on
3 answers
asked by
solexgirl12
2,167 views
The anode (positive terminal) of an X-ray tube is at a potential of +125000 V with respect to the cathode (negative terminal).
1 answer
asked by
Elise
827 views
what value of resistance should be placed.in parallel with 50microfarad capacitor in order to have a total power factor of 0.8
5 answers
asked by
Student
2,914 views
Two identical small charged spheres, each having a mass of 5.0x102 kg and having the
magnitudes of -3µC and -4µC, hang in
5 answers
asked by
Kondwani moyo
166 views
A student observes interactions between two sets of electrically charged objects and each set the objects carry either a charge
2 answers
asked by
Rip
266 views
How can you use the sticky tape activity to find if an object has excess charge that can be transmitted to the computer and ruin
5 answers
asked by
Sarah
1,238 views
Strength of Electrical Forces Quick Check
3 of 53 of 5 Items Question Which of the following interactions in the data set below
4 answers
asked by
67
477 views
Consider the uniform electric field
E = (8.0ĵ + 4.0 k) ✕ 103 N/C. What is its electric flux (in N · m2/C) through a circular
4 answers
asked by
Tris
2,296 views
what is the voltage acros a 60.0 resistor with a current of 3 1/3 a?
4 answers
asked by
Hannah
2,436 views
An electron is accelerated through a uniform electric field
of magnitude 2.5 3 102 N/C with an initial speed of 1.2 3 106 m/s
4 answers
asked by
pa
1,175 views
Two capacitors are identical, except that one is empty and the other is filled with a dielectric (k = 4.2). The empty capacitor
4 answers
asked by
Aine
3,697 views
1) a wire of length 1m has a resistance of 2 ohm.obtain the resistance if specific resistance is double,diameter is double and
4 answers
asked by
Rose
3,433 views
An electric field does 14 J of work on a 0.0008 C charge.
What is the magnitude of the voltage change? Answer in units of V. The
4 answers
asked by
jen
2,233 views
8 1/2 HRS ON THIS MASTERING PHYSICS WOW
n 1909, Robert Millikan was the first to find the charge of an electron in his now-famous
5 answers
asked by
Kristie
4,791 views
13. A generator produces 100 kW of power at a potential difference of 10 kV. The power is transmitted through cables of total
6 answers
asked by
shanza
4,223 views
A work of 30 joules is done transferring 5mili Coulombs of charge from a point B to a point A in an electric field field . Find
4 answers
asked by
Lawrence
1,719 views
a capacitor 8uf is charged to a potential difference of 100v. the energy stored by the capacitor is?
4 answers
asked by
Robotic
1,986 views
For the circuit below, V1 has rms voltage of Vrms=10V. The turn ratio of the primary to secondary side of the transformer is
4 answers
asked by
student
1,309 views
When potential difference across the terminals of a battery is measured using an analogue voltmeter of resistance 95 ohms, the
4 answers
asked by
Help pleaseeee
1,948 views
Two capacitors, C1 = 5 μF and C2 = 12 μF, are connected in parallel,
and the resulting combination is connected to a 9 V
4 answers
asked by
maram
2,822 views
Two capacitors of capacities c1=3uf and c2=6uf arranged in series are connected in a parallel with third capacitor c3=4uf. The
4 answers
asked by
shahbaz ahmad pala
6,215 views
the current through a meter movement is 150 micro amperes. what is the dc value if the instrument uses half-wave rectification?
4 answers
asked by
Anonymous
1,020 views
A paralle plate air capacitor has a capacitance of 500.0 pF and a charge of magnitude 0.200 uC on each plate. The plates are 0.6
4 answers
asked by
J
1,779 views
A 24 V battery of internal resistance 4 ohm is connected to a variable resistor. At what value of the current drawn from the
3 answers
asked by
Himanshu Kumar
3,173 views
A beam of ions passes undeflected through two parallel horizontal plates 1.5cm apart having a p.d of 3000v when a perpendicular
3 answers
asked by
Fatima
350 views
which electromagnet will produce the strongest magnetic force
3 answers
asked anonymously
419 views
An object has an excess of 50 electrons. What is the charge on the object in picocoulomb?
4 answers
asked by
Anonymous
643 views
A multiple loop configuration is rotating at 60 Hz in a magnetic field of 0.12 T. The coil has an area of 0.0052 m2. How many
1 answer
asked by
charlie
835 views
If the current is used, find the time taken for 5.5g of gold to be deposited ( Au =197, 1 faraday = 96500c )
1 answer
asked anonymously
81 views
In a circuit with resistance 10 ohms, power 𝑃 (measured in watts) is equal to 10𝐼2 , where 𝐼 is the current measured in
2 answers
asked by
Brett
1,050 views
A student connects a battery to a wire and wraps the wire around an iron nail to produce an electromagnet. Which action should
1 answer
asked by
Gelo
137 views
How far apart should two protons be if the electrical force of repulsion is equal to the weight (attraction to the earth) of one
2 answers
asked by
Anonymous
775 views
An object with a charge of +1 C is 10 mm from an object with a charge of +1 C. Based on the data in the table, which type and
1 answer
asked by
Lady
40 views
A student wraps insulated copper wire 12 times around a nail, and connects the ends to a fresh 9-volt battery. The student finds
1 answer
asked by
ANSWER CORRECTLY
37 views
Which statement describes a similarity between conductors and insulators?(1 point)
Responses They can both be made without
1 answer
asked anonymously
37 views
What produces the magnetic force of an electromagnet?(1 point)
Responses movement of charged particles through the wire movement
1 answer
asked by
you isn't getting my name
22 views
The illustration depicts a circuit containing two resistors.
What is the magnitude of the current passing through the ammeter
1 answer
asked by
>_>
13 views
The resistance in a circuit is halved. What happens to the voltage?
V=IR (1 point) Responses The voltage is increased by a factor
1 answer
asked anonymously
26 views
According to Coulomb's Law, the amount of electric force depends on which two things?
a the size of the charge on each of the two
1 answer
asked by
e
8 views
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