Expt4
... In good transistor IC>>IB i.e. >>1. IC can also be expressed as IC = IE . where = /(1+) . is called common base current gain. For good transistor, is close to unity. Proper dc biasing of a transistor is a prerequisite for proper operation as an amplifier. The purpose of the biasing is to ...
... In good transistor IC>>IB i.e. >>1. IC can also be expressed as IC = IE . where = /(1+) . is called common base current gain. For good transistor, is close to unity. Proper dc biasing of a transistor is a prerequisite for proper operation as an amplifier. The purpose of the biasing is to ...
time of completion
... c. Its electric potential energy decreases as it goes from high to low potential. d. Its electric potential energy increases as it goes from high to low potential. ...
... c. Its electric potential energy decreases as it goes from high to low potential. d. Its electric potential energy increases as it goes from high to low potential. ...
SAMPLE PAPER 2011 CLASS - XII SUBJECT- PHYSICS
... (ii) Draw the block diagram to illustrate the process of amplitude modulation. 20. Define ‘power of a lens’. Plot the graph showing the variation of power of a lens with the wavelength of the incident light. Prove that the equivalent power of the combination of two thin lenses in contact is the sum ...
... (ii) Draw the block diagram to illustrate the process of amplitude modulation. 20. Define ‘power of a lens’. Plot the graph showing the variation of power of a lens with the wavelength of the incident light. Prove that the equivalent power of the combination of two thin lenses in contact is the sum ...
Capacitor Supplies Current to Bulb Part A Immediately after time
... Light bulbs are often assumed to obey Ohm's law, but this is not strictly true, because their resistance increases as the filament heats up at higher voltages. A typical flashlight bulb at full brilliance draws a current of approximately 0.5 A while attached to a 3 V source. For this problem, assume ...
... Light bulbs are often assumed to obey Ohm's law, but this is not strictly true, because their resistance increases as the filament heats up at higher voltages. A typical flashlight bulb at full brilliance draws a current of approximately 0.5 A while attached to a 3 V source. For this problem, assume ...
AP Physics 1 Student Sample Question 4
... Correct ranking is (A = D) > (B = C). For indicating that the potential difference is the same across A and D because the current is the same through each (A and D are in series.) For indicating that the potential difference is the same across B and C because B and C are in parallel For indicating t ...
... Correct ranking is (A = D) > (B = C). For indicating that the potential difference is the same across A and D because the current is the same through each (A and D are in series.) For indicating that the potential difference is the same across B and C because B and C are in parallel For indicating t ...
three-phase short circuit at the common medium voltage bus
... most protection interventions can be avoided ! ...
... most protection interventions can be avoided ! ...
transistor theory
... We can dope a single crystal so that one part is p-type and the other part n-type. What happens when we place a voltage across it? Voltage will push the charges towards each other. ...
... We can dope a single crystal so that one part is p-type and the other part n-type. What happens when we place a voltage across it? Voltage will push the charges towards each other. ...
Voltage, Current and Ohm`s Law
... the current flow through both resistors - do not give it a choice). Now set the voltage of the PS to 5 volts and note both the current and the brightness of both bulbs. Are they the same brightness as when you placed five volts across each separately? Is the same current going through each as when y ...
... the current flow through both resistors - do not give it a choice). Now set the voltage of the PS to 5 volts and note both the current and the brightness of both bulbs. Are they the same brightness as when you placed five volts across each separately? Is the same current going through each as when y ...
Powerpoint
... An S-R latch stores a single binary digit (1 or 0) There are several ways an S-R latch circuit can be designed using various kinds of gates Figure 4.12 An S-R latch ...
... An S-R latch stores a single binary digit (1 or 0) There are several ways an S-R latch circuit can be designed using various kinds of gates Figure 4.12 An S-R latch ...
Chapter 7 Electrodynamics 7.1 Electromotive Force
... Example: In vacuum-tube diodes, electrons are emitted from a hot cathode at zero potential and collected by an anode maintained at a potential V0, resulting in a convection current flow. Assuming that the cathode and the anode are parallel conducting plates and that the electrons leave the cathode w ...
... Example: In vacuum-tube diodes, electrons are emitted from a hot cathode at zero potential and collected by an anode maintained at a potential V0, resulting in a convection current flow. Assuming that the cathode and the anode are parallel conducting plates and that the electrons leave the cathode w ...
Homework #11 203-1-1721 Physics... 2. A circular coil has a 10.3 cm radius... externally produced magnetic field of 2.62 mT is perpendicular to...
... 45. An LC circuit has an inductance of 3.0 mH and a capacitance of 10 µF. Calculate (a) the angular frequency and (b) the period of oscillation. (c) At time t = 0 the capacitor is charged to 200 µC, and the current is zero. Sketch roughly the charge on the capacitor as a function of time. 52. A sing ...
... 45. An LC circuit has an inductance of 3.0 mH and a capacitance of 10 µF. Calculate (a) the angular frequency and (b) the period of oscillation. (c) At time t = 0 the capacitor is charged to 200 µC, and the current is zero. Sketch roughly the charge on the capacitor as a function of time. 52. A sing ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.