Series Type Ohmmeter

Series Type Ohmmeter: Series Type Ohmmeter - A D' Arsonval movement is connected in series with a resistance R1 and a battery which is connected to a pair of terminals…

Continue Reading Series Type Ohmmeter

Multirange Ohmmeter

Multirange Ohmmeter: The Multirange Ohmmeter circuit shown in Fig. 4.28 (a) is only for a single range of resistance measurement. To measure resistance over a wide range of values, we…

Continue Reading Multirange Ohmmeter

Voltmeters and Multimeters Articles

Voltmeters and Multimeters Articles: AC Voltmeter using Half wave Rectifier : AC Voltmeter using Half wave Rectifier – If a diode D1 is added to the dc voltmeter, as shown…

Continue Reading Voltmeters and Multimeters Articles

Electronic Instrumentation Articles

Electronic Instrumentation Articles: This Electronic Instrumentation Articles which includes the following topics: Introduction to Electronics Instrumentation Static Characteristics of Measuring Instruments Errors in Measurement Types of Static Error and Sources…

Continue Reading Electronic Instrumentation Articles

Transistor Lead Identification and Testing

Transistor Lead Identification and Testing: Transistor Lead Identification and Testing - After the transistor has been manufactured, as already discussed, leads of, typically, gold, aluminium, or nickel are then attached…

Continue Reading Transistor Lead Identification and Testing

Semiconductor Diodes Articles

Semiconductor Diodes Articles: AC Equivalent Circuit of Semiconductor Diode : Junction Capacitances – The depletion region of a pn-junction is a layer depleted of charge carriers situated between two blocks…

Continue Reading Semiconductor Diodes Articles

Testing of Semiconductor Diode

Testing of Semiconductor Diode: There are Several methods are available for Testing of Semiconductor Diode, namely, Ohmmeter Tests: One of the simplest and quickest tests can be made using an ohmmeter…

Continue Reading Testing of Semiconductor Diode

Distance Relays or Impedance Relays

Distance Relays or Impedance Relays: The operation of the relays discussed so far depended upon the magnitude of current or power in the protected circuit. However, there is another group…

Continue Reading Distance Relays or Impedance Relays