Electronics Engineering

The 12V battery connected to the 2.4 Ohm combination will supply 12/2.4 or 5A. The individual currents will be 12/3 or 4A for the 3 Ohm resistor, and 12/12 or 1A for the 12 Ohm resistor. The 2.4 Ohm parallel combination is obtained from a simple product-over-the-sum calculation.

In a series circuit, the current through each element is the same current.

Because the total current must flow through every element.

In a parallel circuit, the voltage across each element is the same voltage.

Because every element is connected individually across the power supply.

UV lasers are good for analyizing top surface layers. It has a penetration depth of only a few nanometers, making it incredibly sensitive, even to very thin layers.

what are the 3 kinds of electonic diagrams ..the three kinds are layout or block diagram, schematic diagram and pictorial diagram

To receive a Satellite signal, you need a LNB which is attached to your satellite dish--The LNB and dish is determined by which satellite TV service you have--either Dish Network or DirecTV. The satellite dish is pointed in a particular direction to pick up the correct satellite orbiting the sky. You will also need a satellite receiver, which is "wired" to the LNB and also is attached to your television.

This difficulty arises due to the fact that the IC fabrication techniques are layer oriented which typically involve processes which are applied to multiple horizontal surfaces in a sequential fashion. However the inductive circuits has a "non-planar" configuration which typically has a continuous spiral shape. This particular spiral configuration thus prevents the IC fabrication to integrate the inductive circuits as part of the IC devices.

• parallel circuit, a circuit containing two or more subcircuits connected across each other allowing current flow to divide between them, the voltage across all of these subcircuits is identical
• series circuit, a circuit containing two or more subcircuits connected inline with each other allowing the voltage to distribute across them, current flow through all these subcircuits is identical
• open circuit, a circuit with a break (or opening) in it, preventing current from flowing
• closed circuit, a circuit with no breaks (its fully closed) in it, permitting current flow
• short circuit, a circuit having an unintended low impedance path (or shortcut path) somewhere in it causing current flow to bypass one or more subcircuits within the circuit; this often causes excessive current flow and damage, unless a fuse melts or a circuit breaker pops to create an open circuit and thus protect things

The "size" (value or the power capacity) of the resistor can not be defined unless the power of the 3 volt bulb is known. If you tell me how many amps would the bulb draw from a 3 volt source, I will tell you exactly how many ohms of resistance, and how many watts of power capacity will be required of the resistor.

There are many ways. FIRST: short the terminals to ensure it is not charged. Many of the digital meters today also have a capacitance check setting, simply use that setting. It not only checks for faults, but also will give you a reading of the capacitance value itself. For most non-electrolytic capacitors a quick check (definately bad vs. maybe good) can be done with an analog VOM. Use the highest resistance scale to measure across the terminals. When first connected there should be a short needle jump that slowly drops back to infinity. Reverse the leads and do it again, should have the same effect. Any resistance highter than infinity indicates a shorted capacitor. Lack of needle jump may indicate an open capacitor (or one of very little capacitance). Electrolytics can also be checked with a VOM, but polarity must be observed, and the drop back to infinity may take a very long time. Alternatively, for electrolytics and larger capacitors is to charge them with a low voltage source (e.g. 9V battery) and measure with multimeter to see if they hold the charge.

first lets explain what an electrolytic capacitor is to identify an electrolytic capacitor look for positive and negative indicators (non aren't polarized). the reason that its polarized is because the anode is normal but the cathode is a normal one with electrolyte soaked paper this allows more electrons to be stored thus more energy. a non can only hold what the metal can take. but if you reverse the flow it heats and the steam causes the canister to blow. basically a non electrolytic capacitor is a capacitor with no extra features, just a couple of aluminum plates separated by air.

Analog clock shows time passing by moving hands continuously. In contrast, digital clock shows the time numerically. By analog clock you can tell the time between graduations to some extent by the location of the hands because the hands move continuously. But by digital clock, you can not read other than the information shown. If it shows seconds as well, you can tell more precisely

One way, is to turn on your light switch and observe how long it takes for the light to reach to the other side of the room. (How long it takes for the room to go from dark to light.) Be careful not to blink or you'll miss it.

With DSP you can change, modify, study the properties of signals more easily than analog signal processing. You can do modulation, encryption, decryption, encoding, decoding, multiplexing, comparing etc

current is the rate of flow of charge: colombs per second or amps

voltage is the amount of energy in one colomb of charge: volt or jouls per colomb

voltage times current is the power.

Gunn diodes are used in GUNN oscillator over high frequency application. its work on the transfer electron effect TET and the scientist J.B Gunn observe it so the phenomenon is named by gunn effect. the diode are made from GaAs material.because silicon is not suitable low forbidden energy gap 1.21eV only.

A capacitor resists a change in voltage (dv/dt = i/c). An inductor resists a change in current (dl/dt = vl). Together, a capacitor and inductor make a tuned circuit. Usually, in a linear power supply, there is a capacitor in parallel with an inductor in series, and often, in a pi filter, another capacitor in parallel. This reduces the peak to peak voltage at the output. It is also possible to put an inductor in series with the rectifier diode, as as to reduce inrush current. In a switching power supply, things are a little bit different. The primary inductor is a current pump, maintaining constant current flow to the load, controlled by the pulse-width oscillator which switches between on-current from source and off-current from schottky diode. The capacitor in this case filters the output, so as to reduce high frequency harmonics.

rub the bearing gently with a rag soaked in olive oil

Because Audio waves move as sound waves through air as condensations and rarefactions or slight compressions and partial vacuums of gas molecules and can be stopped by the walls of a house.

Equation for Equivalent Resistance in Series is


Req= R1+R2+R3+...........


If each resistor is equal to 3Ohms


then


Req= R1+R2+R3


Req=3+3+3
Req=9 Ohms


The Equivalent resistance is 9 Ohms.

A relay circuit is typically a smaller switch or device which drives (opens/closes) an electric switch that is capable of carrying much larger current amounts. Or a circuit which operates the coil or electronic actuator from one source and uses a separate power source to drive an isolated device. Generally speaking, a relay circuit is a circuit that uses a small mechanical switch or a semiconductor device (with associated circuitry) to energize a relay, which will then close a contact set to complete another circuit. This system is used by most people on a daily basis, and it is used to start a motor vehicle. The key switch (ignition switch) is turned to "start" and 12 volts (approximately) is applied to the starter solenoid (which is a big relay). The coil is energized, it shuts contacts, and the battery voltage is delivered through the heavy contact set (for high current capacity) to the starter motor. There are variations on this theme to which the term relay circuit can be applied, but the idea remains the same: a small switch of some kind controls switching in another (usually higher voltage and/or current) circuit. It could be argued that the telegraph is a relay circuit. Remember those old westerns? When a telegraph key is pushed down (thus completing the circuit), a remote (relay) coil is energized. The magnetic field created by energizing that coil pulls down an armature with the objective being to make a "click" instead of it being to close some electrical contacts. An early and dramatic application of the simple relay circuit, the telegraph, yes? A RELAY CIRCUIT DOES NOT IMPLY MASSIVE CURRENT SWITCHING. It is a means to isolate one source to another.

The transformer in the least complex manner can be depicted as a thing that means up or ventures down voltage. It is fundamentally a voltage control gadget that is utilized broadly in the conveyance and transmission of rotating flow power.

Trutech Products is a leading Transformer Manufacturers In Pune

E is a shorter form of EMF, which stands for "ElectroMotive Force", which is a fancy term for Voltage. Technically, voltage is a unit of potential energy. When a conductor is connected between two sources of dissimilar charge, a force is asserted on the electrons in the atoms and molecules in the conductor. This is modeled as a decrease in potential energy and an increase in "kinetic" energy in the form of electron motion, but this is really a simplified model of the actual much more complicated physics behind what is really happening.