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TSGENCO Practice Quiz 5

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Question 1

Referring to Fig., what will be the a.c. resistance of crystal diode at point P?

Question 2

In an

transistor circuit, the collector current is 10 mA. If 90% of electrons are able to reach the collector, then,

Question 3

An ideal crystal diode is one which be-haves as a perfect………………when forward biased.

Question 4

What will be the maximum reverse voltage across the diode in Fig. 33.20?

Question 5

A coil having 500 square loops each of side 10 cm is placed normal to a magnetic flux which increases at a rate of 1 T/sec. The induced e.m.f. is

Question 6

The self-inductance of a coil is 5 mH. If a current of 2 A flows, what is the magnetic flux through the coil?

Question 7

A solenoid has 2000 turns wound over a length of 0.3 m. The area of x-section is $Description: Description: E:\Gate\SSC-JE Electrical - Part 1\9_Electromagnetic-Induction-final_files\image102.png$ . Around its central section, a coil of 300 turns is ‘Around. If an initial current of 2A is reversed in 0.25 sec, the e.m.f. induced in the coil is

Question 8

The full-scale deflection current of a permanent magnet moving-coil (PMMC) meter is 1mA and the coil resistance is

The maximum voltage that can be measured with this meter is

Question 9

A basic D’ Arsonval movement with internal resistance

and full-scale current of 1 mA is to be converted into a multi range d.c. voltmeter with ranges 0-10 V, 0-30 V, 0-100 V. The circuit arrangement is shown in Fig.

Question 10

A house is served by a 220 V line. In circuit protected by a fuse marked 9 A, the maximum number of 60 W lamps in parallel that can be turned on is

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ESE & GATE EC General

Jun 30ESE & GATE EC