surgi- ram relatos de transmissões de sinais telegráficos, en- tre fios situados a várias dezenas de metros uns dos outros, por indução electromagnética. Term, Indução electromagnética. Source, ;. Status. New, Rejected, Approved. Plural, -ões /-s. Genitiv. Gender. Pronunciation. Last changed, Never. Created. Check out my latest presentation built on , where anyone can create & share professional presentations, websites and photo albums in minutes.

Author: Magal Meztira
Country: Guatemala
Language: English (Spanish)
Genre: Love
Published (Last): 1 December 2005
Pages: 193
PDF File Size: 13.8 Mb
ePub File Size: 8.71 Mb
ISBN: 339-1-21115-278-4
Downloads: 80870
Price: Free* [*Free Regsitration Required]
Uploader: Kaganos

A tank containing a liquid has turns of wire wrapped around it, causing it to act like an inductor.

Does this result confirm the qualitative description of what is observed in the demonstration? The height of the liquid in the tank is d.

Take The magnetic susceptibility of liquid oxygen is c Repeat part ihducao for mercury. One coil has self-inductance and the other coil has self- inductance The mutual inductance of the two coils is M.


The current travels in the same sense around each coil. The liquid content of the tank can be measured by using its inductance to determine the height of the liq- uid in the tank. A common demonstration of inductance employs a circuit such as the one shown in Fig.


The four sides of the tank each have width W and height D Fig. CP A Volume Gauge.

fq microfone copy1

Find the maximum charge that each capacitor will receive, and how much time after the switch is flipped it will take them to acquire this charge. For simplicity, assume that the resistance of the light bulb is constant and equals the elechromagnetica the bulb must have to dissipate You can ignore any fringing effects and assume that the relative permeability of the material of which the tank is made can be ignored. When switch S is opened, a transient current is to be set up that starts at 0.

Obtain an expression for the current through the inductor and light bulb as an explicit electromatnetica of time. Also, show that they satisfy the initial conditions where and d Deter- mine the time at which first becomes zero. The circuit elements are as follows: The inductance of the tank changes from a value of corresponding to a relative permeability of 1 when the tank is empty to a value of corre- sponding to inucao relative permeabil- ity of the relative permeability of the liquid when the tank is full.


CP In the circuit shown in Fig. Switch S is closed, and the light bulb repre- sented by resistance just barely glows.

Educast Manager – Educast Player: indução –

The appropriate electronic circuitry can determine the induc- tance to five significant figures and thus the effective relative per- meability of the combined air and liquid within the rectangular cavity of the tank.

The magnetic susceptibility of mercury is given in Table You are to connect a resistor in series with the inductor, electromagetica represents the sum of that resistance plus the internal resistance of the inductor. Determine and for the given design considerations.

After a period of time, switch S is opened, and the bulb lights up brightly for a short period of time. Switch S is electromwgnetica at time causing a current through the inductive branch and a current through the capacitive branch.

Folha 06 Indução

Obtain expressions for these steady-state currents. Two coils are wrapped around each other as shown in Fig.

Enviado por Wallace flag Denunciar.