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CBSE-NET 2017 EC Exam: Practice Quiz 4

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Question 1

The current entering the terminal of an element is given by:
i = (6t² – 2t) A
The total charge entering the terminal between t = 1 s and t = 3s is

Question 2

An alternating voltage is given by

Its r.m.s. value will be

Question 3

In an R-L series circuit, R = 10Ω and X_L = 10Ω. The phase angle between applied voltage and circuit current is …………

Question 4

In a two phase generator, the electrical displacement between two phases or winding is ……………. electrical degrees.

Question 5

Deflection in a galvanometer falls from 50 divisions to 20 divisions when a $Description: Description: Description: E:\Gate\SSC-JE Electrical - Part 1\7_Magnetism-and-Electromagnetism-final_files\image081.png$ shunt is applied. Galvanometer resistance is

Question 6

A current of 2 A through a single turn coil sets up flux linkages of 4 Wb-turn. The inductance of the coil is…………

Question 7

If the Number of turns or a coil is increased its inductance………..

Question 8

If R_c = 10kΩ in the following figure, what will be the value of V_CEassuming I_CEO remains unchanged?

Question 9

In a silicon transistor, a change of 8 mA in the emitter current produces a change of 7.8 mA in the collector current. What change in base current is necessary to produce an equivalent change in the collector current?

Question 10

The reverse current in a crystal diode is of the order of ……………….

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ESE & GATE EC General

Jun 30ESE & GATE EC