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Q. Working of On - off hook circuit in telephone hand set?
On/off hook circuit (sometimes termed as a switch hook) is nothing more than a simple single-throw, double-pole (STDP) switch placed across tip and ring. Switch is mechanically connected to telephone handset so that when telephone is idle (on hook), switch is open. When telephone is in use (off hook), switch is closed completing and electrical path through microphone between tip and ring of local loop.
varification of ohm''s law
Q. The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13%with half rated current at unity power fa
Q. What is Time Switches? Principle of a time switch is displayed in Figure. It connects an incoming n channel PCM highway to an outgoing n channel PCM highway. As any incoming
why voltages are in multiple in 11
Bias circuit requirements: Signal requirements for Class A amplifiers The Q-point is placed thus the transistor stays in active mode (does not shift to operation in the s
Q. A 10-kW, 250-V dc shunt generator, having an armature resistance of 0.1and a field resistance of 250 , delivers full load at rated voltage and 800 r/min. The machine is now ru
MOV ( Move ) Instruction It copies the contents of the sources register into destination register. The general format is . This instruction is used to copy 8 bit from s
Customer Relationship Management Software CRM software products are most varied and variable in cost and functionality. The significant CRM software application includes: a
#What are the types of Negative Feedback Amplifier?
Can you explain how electrochemical grinding is advantageous over conventional grinding? How metal is moved in electrochemical grinding? What is the basic principle of electroch
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