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Q. Schematic Diagram of LED based System ?
As shown in the two schematic diagrams above, the LEDs in a seven-segment display are not isolated from each other. Rather, either all of the cathodes, or all of the anodes, are connected together into a common lead, while the other end of each LED is individually available. This means fewer electrical connections to the package, and also allows us to easily enable or disable a particular digit by controlling the common lead. There is no advantage of the common-cathode seven-segment unit over the common-anode version, or vice-versa. Each type lends itself to certain applications, configurations, and logic families.
Q. What is thermal runaway? State one method to prevent the same? The effect of changes in leakage current (ICO) and current gain(b) on the dc bias point is given by the equat
Use the offset diode model with a threshold voltage of 0.6 V to determine the value of v 1 for which the diode D will first conduct in the circuit of Figure(a).
With respect to serial communication define the parity. Besides the synchronization given by the use of start and stop bits, an additional bit termed as a parity bit may opt
Types of Meter Test A meter should pass the subsequent two types of tests: Type Tests Routine Tests Meters are calibrated such in which the whole
At what velocity must a conductor 75 mm long cut a magnetic field of flux density 0.6 T if an e.m.f. of 9 V is to be induced in it? Suppose the conductor, the field and the directi
In a ferromagnetic material the state of flux density is as follows when external magnetic field is applied to it. (A) Increased (B) Becomes zero (C) Remains unchang
The Parallel Resistance rule Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
Q. For a part of the network shown in Figure, given that i 1 = 4A; i 3 (t) = 5e -t , and i 4 (t) = 10 cos 2t, find v 1 , v 2 , v 3 , v 4 , i 2 , and i 5 .
Circuit with capacitive load Capacitors which obey the relationship of equation are linear capacitors, since the potential difference among the conductive surfaces is linearly
Q. Advanced Mobile Phone System? Cellular systems employed cells with a radius in the range of 5-18 km. The base station usually transmitted at a power level of 35 W or less, a
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