A three-phase full-wave half-controlled bridge uses? Mark as favorite Copy Link 4 SCRs 3 SCRS 2 SCRs 8 SCRs Check Answer
An SCS has? Mark as favorite Copy Link two anodes and two gates three layers and four terminals four layers and three terminals one anode, one cathode and two gates Check Answer
The operation of a thermocouple is based on? Mark as favorite Copy Link Seebeck effect Peltier effect Thomson effect Faraday's laws Check Answer
Holding current in PNPN diode is the? Mark as favorite Copy Link gate current required to keep the device ON minimum current to keep the, SCR ON current at breakover point minimum current to keep the device OFF Check Answer
Most SCRs can be turned off by voltage reversal during negative half cycle of the A.C. supply for? Mark as favorite Copy Link all frequencies frequencies upto 200 Hz frequencies upto 30 kHz none of the above Check Answer
A voltmeter must have very high internal resistance so that? Mark as favorite Copy Link Accuracy is high Resolution is high Draws small amount of current Creates high loading effect circuit Check Answer
Errors which may be variable both in magnitude and nature (positive or negative) are classified as …………. error? Mark as favorite Copy Link Hysteresis Random Interaction Systematic Check Answer
The use of …….. instruments is merely confined within laboratories instruments. as standardizing? Mark as favorite Copy Link Absolute Indicating Recording Integrating Check Answer
To reduce the loading effect, an instrument must possess? Mark as favorite Copy Link Zero input impedance Unit input impedance High input impedance Low input impedance Check Answer
An oscilloscope is basically designed to convert? Mark as favorite Copy Link Visual signals to electrical signals Sound signals to electrical signals Electrical signals to visual signals Sound signals to visual signals Check Answer