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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
What will happen if you pass ac current passes through a inductor?
magnetic flux will be induced its use to rotate the shaft or given some force
Why more current amplification in common emitter?
A bipolar transistor can be used in different configurations in linear electronic design. Most well known is the common emitter CE configuration with a base current as input signal resulting in a collector signal multiplied by the current gain factor. The second configuration is known as the emitter follower or common collector configuration. Here the input signal is in the form of a voltage between the base and the common connection. The output signal is found in the form of a voltage at the emitter with a relative low output impedance. The voltage swing at the input is almost as large at the output where the input impedance equals the
product of the current gain factor and the emitter resistance.
The third configuration is known as common base CB. Here the input current at the emitter almost equals the output current at the collector. The current gain is nearly equal to 1.
Is the load prong on a toggle switch the constant power source?
No the power comes from something other than the switch.
Why in equal resistor in parallel circuit have same currents through them?
Because the potential difference V would be the same
I = V/R
As V remains the same, then as R is the same then I too would be the same
How does the Analog multiplexer IC-4051 works?
I think each channel acts like a drain-source path of a FET switch,whose resistance changes from very high to very low. Yet the Drain - source are almost isolated from gate. It seems internally the a.multiplexer contains such FETs. And depending upon the channel selection by digital pins a0..a2 certain single path is made low resistance
common base
What is the zip code for grand junction?
81501, 81502, 81503, 81504, 81505, 81506, 81507, are the zip codes in Grand Junction.
What does plc in electrical terms mean?
Programmable Logic Controllers
PLCs are kind of Digital Computers (small scale) which run on a predefined logic. These are commonly used in industries for production lines which could take multiple inputs & could handle multiple outputs.
Further, 'Ladder Logic' is used to program these items.
What is the difference between material science and material engineering?
the main difference is of SPELLINGS!.
material science is knowing the basic knowledge about materials i.e their properties. and material engineering is that, by knowing the properties of a particular material you design or engineer that material for desired applications.
What are the Differentiate the sine wave and cosine wave?
The differential of the sine function is the cosine function while the differential of the cosine function is the negative of the sine function.
The proton will circulate clockwise in a plane perpendicular to the the north direction.
The proton will move from the east to the west clockwise.
What is ment by the time constant of a 4700F capacitor is 12seconds?
Capacitors don't have time constants. The combination of a capacitor and a
resistor has a time constant. It's equal to the product of the resistance (ohms)
and the capacitance (farads), and has the units of time.
When the capacitor is allowed to discharge through the resistor, the voltage on
the capacitor and the current through the resistor both decrease steadily as the
capacitor empties. The time constant is the time it takes for those quantities to
decrease to 36.8% (1/e) of what they were one time-constant earlier.
4,700F is an enormous capacitor. But OK, if that's its real value, then in order to
have a time constant of 12 seconds, we can calculate the resistance like this:
RC = 12 seconds
R = 12/C = 12/4,700 = 0.00255 ohm.
Now we ( I ) understand what the question is talking about !
0.00255 ohm is not an external resistor connected in series with the capacitor.
It must be the effective internal resistance of the capacitor itself. The performance
spec of 12 seconds for the device is telling you that it has a very low internal
resistance, so you can get current (energy) in and out of it fast. As a circuit-
design component, it blurs the distinction between a capacitor and a battery.
How many diodes can be used in center tap type rectifiers?
There are two diodes in a standard center tapped configuration of a rectifier. This is per phase, so if you had a three phase system, each winding having a center tap, all of which are connected together, you would have six diodes.
What is the formula for bjt power consumption?
it is the collector voltage multiplied by the sum of all the currents.
What is the difference between MOSFET and thyristor?
They are both commonly used electrical switches. Some of the differences are that whereas Mosfet switches are voltage driven devices and can only switch DC current, Thyristor switches are current driven and can switch both AC and DC.
the low frequency signal which is nothing but the message signal
Neither. The envelope will be that of the difference beat frequency. To get the envelope to follow the low frequency input signal you need to mix (multiply) the two signals, not add them.
What is a class 2 assembly according to an IPC-A610 standard?
IPC-A-610 (Revision E) defines Class 2 assemblies as 'Dedicated Service Electronic Products'. I'm paraphrasing here, but this includes products for which continuous performance and long working life is a necessity, consistent reliable operation is desired but not critical, and which are not used in environments that could cause failures.
Some examples would be: consumer PC motherboards, the circuit boards inside modern video game consoles, etc.
The quick dirty answer: Class 2 means a high quality end product that won't (possibly) harm people if it fails
you can use the decoder in spy island. if you see some mysterious people, (normally in black) talk to them and they may give you a message.
Why didn't radar detect the incoming Japanese airplanes?
They did, but sometimes the planes would fly very low so that the radars could not detect them.
Internal circuit components of a ceiling fan?
The most important parts of the fan are-
1. Motor (Stator and Rotor)
2. Capacitors
3. Triple Capacitors (to control the voltage entering the motor)
4. Reverse Switch
