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Electronics
Electronics are a branch of technology and science that deals with the control of the flow of electrons.
3,725 Questions
What temperature does a solder melt at?
Solder typically melts at temperatures between 180°C to 190°C (356°F to 374°F), depending on the type of solder alloy being used.
Why a series resistor is necessary when a diode is forward-biasedexplain?
A series resistor is necessary when a diode is forward-biased to limit the current flowing through the diode and prevent damage to the diode. Without a series resistor, the diode could draw excess current and overheat, potentially causing it to fail. The resistor helps control the current and protect the diode in the circuit.
What is the name of two energy bands at which current is produced in silicon?
The two energy bands in which current is produced in silicon are the valence band and the conduction band. Electrons in the valence band can be excited to the conduction band by absorbing energy, allowing them to move and create an electric current.
Is it possible to run 0.2 amps at 12 volts for 1 minute on a fairly small and cheap capacitor?
Yes, it is possible to run 0.2 amps at 12 volts for 1 minute using a capacitor. The size of the capacitor needed will depend on its capacitance value and the voltage rating, as well as the energy storage capacity required for the given load. It would be advisable to select a capacitor with sufficient capacitance and voltage rating to handle the input specification.
A circuit home run is a baseball term used to describe a home run where the batter hits all the bases without stopping. It is also known as an "inside-the-park" home run.
The ampere is the unit of electric in the metric system The amount of current per second is what?
The ampere is the unit that measures current. The current is like a flow in a pipe or a river. Just like a flow could be liters or gallons per second, one ampere is 6.24 x1018 electrons passing per second.
Will it works if negative 48V is interchange from positive 48V?
If it's a motor, it may just run backwards.
If it uses any kind of solid-state electronics, you will very, very, very likely blow the equipment or the power supply.
Reversing polarity of power supplies? Just don't do it.
A battery analyzer is an electronic gadget proposed for testing the condition of an electric battery, going from a straightforward gadget for testing the charge really display in the cells and/or its voltage yield, to a more far reaching testing of the battery's condition, in particular its ability for gathering charge and any conceivable defects influencing the battery's execution and security.
An ideal battery would have high energy density, fast charging capabilities, a long lifespan, and be safe and environmentally friendly. It would also be cost-effective and easily scalable for various applications.
Why are batteries cylindrical?
Cylindrical shapes are efficient for housing the components of a battery, like electrodes and electrolytes, in a compact space. Additionally, cylindrical shapes provide structural stability and prevent leakage of the battery contents. This shape also allows for easy stacking and packing of batteries in electronic devices.
Which has a longer life an LED or an incandescent light bulb?
It depends entirely on the bulbs being compared. There are some very bright fluorescent bulbs. In some Compact Fluorescent Lamps (CFL) they take longer to get to full brightness. Also the frequency of the light emitted has a lot to do with the brightness the eye perceives.
What are the ingredients in a battery?
this factor depend upon the type of battery there are several type of batteries which are lead acid, Nickel Cadmium , Lithium Ion, etc for example the contains of lead acid battery is- Lead (Pb) and Acid basically H2so4 with water H2o and plates are made of Pb lead a
What wavelength is the most beneficial for plant growth?
Red and Blue light are best for plant growth because those two wavelengths are what chlorophyll respond to.
.............if this is tru y not use a black light................it emits purple light
The Battery is mounted in the boot (trunk) of this vehicle.
To access you need to go into the boot, lift the rear cover off (from the floor)
You should see the battery sitting in the middle of the rear (with a black plastic cover)
N.B. you can jump start this vehicle from the engine bay - where a positive feed (marked in red) is located by the front fuse board.
A central battery system is a setup where all the emergency lights in a building are powered from a central source, usually a bank of batteries. This design allows for easier maintenance and testing of emergency lighting systems.
Electromagnetic damping fields are a theoretical concept used in physics to describe the effects of electromagnetic fields on moving charged particles. While the idea of EM damping fields is used in theoretical models, their direct observation is not yet possible due to the complex nature of electromagnetic interactions at small scales.
What is the density of a battery?
The density of a battery can vary depending on its chemistry and design, but typical values range from 1.3 to 2.0 grams per cubic centimeter.
An APC battery is a backup battery designed to provide emergency power to connected devices in case of a power outage or electrical surge. They are commonly used with uninterruptible power supplies (UPS) to provide temporary power to critical systems until regular power is restored.
HAARP, High Frequency Active Auroral Research Program, does exist. It is a basic research project of the USA (other countries have similar facilities), and conducts fundamental research on the physical and electrical properties of the ionosphere.
The power that HAARP can apply to its transmissions is large. The largest legal AM radio antenna in North America is 50 kilowatts. HARRP operates in the HF (High Frequency) range and its power capability is about 72 times that, at approximately 3,600 kilowatts.
*From time to time the Alaska facility holds Open House events that anyone may attend.
What are some examples for transducers?
An electronic device that will convert some form of energy produced by a physical stimulus to an electrical analogue of the stimulus can be mentioned as a transducer.
Among the most frequent examples there are microphones, loudspeakers, thermostats, position and pressure sensors, antenna and thermometers. Even photocells, LEDs (Light Emitting Diodes), and even common light bulbs are transducers, although they are not generally thought as transducers.
Since physical changes (heat, sound, pressure etc.) can be converted into electrical signals with transducers, they can be also used as sensors.
In electronics What does the p in OVP mean?
In electronics, OVP stands for Over Voltage Protection. The "p" in OVP does not have a specific meaning in this acronym. It indicates that the protection is in place to prevent excessive voltage levels that could potentially damage electronic components.
What is forward biased p-n junction?
A forward biased p-n junction is when an external voltage is applied in such a way that the positive terminal is connected to the p-type material and the negative terminal is connected to the n-type material. This reduces the barrier potential, allowing current to flow through the junction.
Does licking a AA battery extend the battery life?
No, licking a AA battery will not extend its life. In fact, it can be dangerous as it can cause a short circuit and harm your tongue. It's best to handle batteries carefully and not expose them to moisture or unnecessary contact.
How technology affect hrm practice?
Technology has revolutionized HRM practices by automating repetitive tasks such as payroll processing and recruitment. It has enabled the use of data analytics for informed decision-making and improved employee engagement through communication tools and online training platforms. However, it also poses challenges such as data privacy concerns and the need for upskilling HR professionals to leverage new technologies effectively.
