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AC Input Resistance in Common Emitter Configuration
Ratio of change in base emitter voltage ( ? VBE ) to the resulting change in base current ( ? IB) at constant collector-emitter voltage (VCE) i.e.,
In CE configuration, typical value of input resistance is of the order of a few hundred ohms.
Q. What is the charge of each of the particles? The e is a unit of charge and it isn't an SI unit of charge but it is a valid unit of charge. In expressions of this unit of cha
Can the batteries used in the torch lights be recharged after their discharge? Give reason? Ans) No,because the NH4Cl corrods the zn containger gradually.so with out anode redox
What are mass defect and binding energy? How is mass defect related to binding energy? Describe the term ‘decay constant' for a radioactive substance. Reduce the relation betwee
Avogadro's hypothesis (Count A. Avogadro; 1811) At the same temperature and pressure, equal volumes of all of the gases contain equal numbers of molecules. In fact, it is, only
Total Internal Reflection: When a ray of light passes from denser medium to rare medium and angle of incidence is greater than the critical angle. The incident ray reflects ba
Que: Specified the electric potential as a function of the Cartesian coordinates x, y, and z how does one determine the electric field? Ans: If the electric potential i
Principle of Cell: To study electrical principles further we require a source of emf. Although an emf can be produced by any of the six methods discussed above, large amounts o
Infra-Red (IR) Detectors: An IR detector has an impedance of Z= (400+j200) ? . During design tests the detector current is measured as 4 µA. What is the output v
1. Consider two monoenergetic photon beams with the same photon fluences. In one beam the photons are 100 keV and in the other they are 1 MeV. Determine the most appropriate relati
FORCE: "Force is that agency which causes a body to alter its state of motion or rest". It is denoted by F ?
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