For each circuit shown in
[link] , the current
equals
.
What is the voltage across each element and what is the voltage
in each case?
For the last circuit, are there element values that make the voltage
equal zero for all time?
If so, what element values work?
Again, for the last circuit, if zero voltage were possible, what circuit element could substitute for the capacitor-inductor series combination that would yield the same voltage?
Solving simple circuits
Write the set of equations that govern
Circuit A's behavior.
Solve these equations for
:
In other words, express this current in terms ofelement and source values by eliminating non-source
voltages and currents.
For Circuit B, find the value for
that results in a current of 5 A passing through
it.
What is the power dissipated by the load resistor
in this case?
Equivalent resistance
For
each of the
following
circuits , find the equivalent resistance using
series and parallel combination rules.
Calculate the conductance seen at the terminals for
circuit (c) in terms of each element's conductance.Compare this equivalent conductance formula with the
equivalent resistance formula you found for circuit (b).How is the circuit (c) derived from circuit (b)?
Superposition principle
One of the most important consequences of circuit laws
is the
Superposition Principle : The current
or voltage defined for any element equals the sum of thecurrents or voltages produced in the element by the
independent sources. This Principle has importantconsequences in simplifying the calculation of ciruit
variables in multiple source circuits.
For the
depicted circuit , find the
indicated current using any technique you like (youshould use the simplest).
You should have found that the current
is a linear combination of the two source values:
.
This result means that we can think of the current asa superposition of two components, each of which is
due to a source. We can find each component by settingthe other sources to zero. Thus, to find the voltage
source component, you can set the current source tozero (an open circuit) and use the usual tricks. To
find the current source component, you would set thevoltage source to zero (a short circuit) and find the
resulting current. Calculate the total current
using the
Superposition Principle. Is applying the SuperpositionPrinciple easier than the technique you used in part
(1)?
Current and voltage divider
Use current or voltage divider rules to calculate the
indicated circuit variables in
[link] .
Thévenin and mayer-norton equivalents
Find the Thévenin and Mayer-Norton equivalentcircuits for the
following circuits .
Detective work
In the
depicted
circuit , the circuit
has the v-i relation
when
.
Find the Thévenin equivalent circuit for
circuit
.
With
,
determine
such that
.
Questions & Answers
Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you.
Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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