and concepts that are fundamental in electronics. It will allow you to investigate and discover: What are voltage‚ current‚ and resistance? How are they related to one another? What are some of the basic components that make up simple circuits and what do they do? What are the important characteristics of a circuit and how do I measure different parts of a circuit? How do I measure voltage in a circuit? How does the arrangement of components affect the characteristics of the circuit? How do I work
Premium Resistor Series and parallel circuits Electrical resistance
experiment. Some of the most common devices and meters to be used is described below. 1) RESISTORS Resistors are devices used to give a desired value of resistance. They are inserted into a circuit in order to lower the current of to produce a desired voltage drop. There are two kinds of resistors: a) the Fix Resistor and‚ b) the Variable Resistor. The fix resistor has a specific value of resistance which cannot be changed‚ while the variable resistor may have a any value of resistance within a specified
Premium Electricity Electric current Direct current
of light depends on the energy gap of the semiconductor. Avalanche Diode: This type of diode operates in the reverse bias‚ and used avalanche effect for its operation. The avalanche breakdown takes place across the entire PN junction‚ when the voltage drop is constant and is independent of current. Generally‚ the avalanche diode is used for photo-detection‚ wherein high levels of sensitivity can be obtained by the avalanche process. Laser Diode: This type of diode is different from the LED type
Premium
Abhishek Akkeneni 902667190 INTRODUCTION – WHAT ARE OPERATIONAL AMPLIFIERS? An operational amplifier ("op-amp") is a DC-coupled high-gain electronic voltage amplifier with a differential input and‚ usually‚ a single-ended output. An op-amp produces an output voltage that is typically hundreds of thousands of times larger than the voltage difference between its input terminals.[1] Op-amps are among the most widely used electronic devices today‚ being used in a vast array of consumer‚ industrial
Premium Amplifier
induction. While transferring electrical energy‚ its frequency does not change. When the transformer raises the voltage i.e. when the output voltage of transformer is higher than input voltage‚ it is called step up transformer and when its output is lower than input‚ then it is called step down transformer. The distribution transformer is the step down transformer that reduces the voltage to domestic use. Since‚ its basic construction requires no moving parts‚ so it is often called static transformer
Premium Transformer
channels? Voltage gated channels 2. a. Where is the density of voltage-gated Na+ channels the greatest? Axon hillock b. What areas of the neuron generate signals that open these voltage-gated channels? Dendrites and the cell body c. Opening of these channels causes the membrane to depolarize. (voltage change). 3. a. If the membrane reaches the trigger point‚ known as Threshold‚ what electrical potential will be generated? Action potential. b. During the depolarization phase‚ voltage-gated
Premium Action potential Neuron
Construction Digital Voltmeter Raj K. Gorkhali A voltmeter finds its importance wherever voltage is to be measured. Here we present an easyto-build and accurate digital voltmeter that has been designed as a panel meter and can be used in DC power supplies panels or where it is necessary to have an accurate indication of the voltage. Circuit description The circuit uses an analogue-todigital converter ICL7107 made by INTERSIL. Fig. 1 shows the pin detail of IC L7107. This IC incorporates in
Premium Direct current Capacitor Display device
THE WAR OF CURRENTS Tesla vs Edison: THE WAR OF CURRENTS In the "War of Currents" era (sometimes "War of the Currents" or "Battle of Currents") in the late 1880s‚ George Westinghouse and Thomas Edison became adversaries due to Edison’s promotion of direct current (DC) for electric power distribution over alternating current (AC) advocated by Westinghouse and Nikola Tesla. Thomas Edison American inventor andbusinessman was known as "The Wizard of Menlo Park" and pushed
Premium Alternating current Nikola Tesla Transformer
LDR will be very less. Here 555 timer IC is configured as a monostable multivibrator. The LDR will trigger the 555 timer. The output of the 555 timer IC is directly fed to the baser of the transistor. This gives low signal and it turns ON the coil voltage of the relay. Street lights were connected to relay. Block diagram: Components used: R1-560E R2-10K LDR 555 Timer IC 7809 regulator IC VR1-10K D1-D2- 1N4001 D3-4148 LED -5mm red colour Q1 – BC 547 Relay -6v DC C1-2200uf 25v C2- 220uf 25v C3-100uf
Premium Transistor Resistor Bipolar junction transistor
EXPERIMENT NO-1 AIM- To determine the frequency of A. C. mains by using an electric vibrator. APPARATUS- Electric vibrator‚ table lamp‚ pulley‚ weight box‚ fishing cord‚ a. c. source. THEORY- when a cord of mass per unit length m is connected to the vibrating rod of the vibrator and stretched with a tension T‚ the cord vibrators in segments. If the length of the cord is then adjusted until the nodes are clearly marked‚ the frequency of the stretched string is the same as of the vibrating rod which
Premium