ELECTRICAL AND ELECTRONICS - Engineering and Science Online Tests

Semiconductor Basics

Question 1: An intrinsic semiconductor at the absolute zero temperature ...

108 Comments. 1398 views since Mar 2, 2009

Microprocessor: Basics of 8085

Question 1: Intel 8085 is manufactured using ...

101 Comments. 1154 views since Sep 11, 2008

Electronic Devices

Question 1: The junction capacitance of a p-n junction depends on ...

27 Comments. 802 views since Sep 21, 2008

Logic Gates and Circuits

Question 1: A'+B'+C'=D represents a ...

41 Comments. 742 views since Sep 15, 2009

Basic Electrical Test

Question 1: How much time is required for an operating 100 W light bulb to dissipate 10 Joules of electrical energy? ...

48 Comments. 616 views since Sep 24, 2008

Basics of 8051 Microcontroller

Question 1: 8051 is an........ ...

27 Comments. 406 views since Sep 22, 2010

Operational Amplifiers

Question 1: The increasing order of input resistance of the op-amp's with various types of transistors is ...

14 Comments. 389 views since Jun 23, 2009

Electricity: Resistances

Question 1: The formula of heat produced in a wire of resistance R when a current of I ampere flows in it for t seconds? ...

23 Comments. 265 views since Sep 27, 2008

8085 Microprocessor

Question 1: ADDRESS BUS IS ___________BIT. AND DATA BUS IS________. ...

16 Comments. 261 views since Feb 8, 2011

Microprocessor: Basics of 8086

Question 1: In maximum mode of operation of 8086,which bus controller is used to issue control signals? ...

17 Comments. 255 views since Sep 12, 2008

Transformers

Question 1: The transformer oil should have______ volatility and ________ viscosity. ...

10 Comments. 233 views since Sep 15, 2008

Logic Gates

Question 1: The number of canonical expression that can be developed over a 3-valued boolean alzebra is ...

11 Comments. 232 views since Aug 19, 2008

Logic Gate and Flip-Flop

Question 1: What logic function is obtained by adding an inverter to the inputs of an and gate ? ...

16 Comments. 210 views since Aug 5, 2008

Analog Electronics

Question 1: A properly biased JFET will act as a ...

6 Comments. 204 views since Sep 12, 2008

Basic Concepts Test 4

Question 1: Resistance in electrical circuit is equivalent to what in magnetic circuit ? ...

11 Comments. 179 views since Aug 14, 2008

Binary Number and Logic Gates

Question 1: 2.s complelement of 010111.1100. ...

16 Comments. 156 views since Aug 4, 2008

Electronics and Communication

Question 1: IN GROUND WAVE PROPAGATION THE ABSORPTION OF WAVES ...

11 Comments. 155 views since Feb 8, 2011

Electronic Device and Circuits

Question 1: semiconductors are classified into ...

6 Comments. 153 views since Sep 22, 2010

Basic Concepts Test 3

Question 1: With a NAND latch a low R and S produce a ....... condition. ...

2 Comments. 146 views since Aug 5, 2008

AC Fundamentals

Question 1: Which of the following waves has the highest value peak factor? ...

8 Comments. 128 views since Sep 7, 2008

Basic of Signals

Question 1: A digital signal has a bit rate of 2000 bps. What is the duration of each bit? ...

8 Comments. 125 views since Sep 11, 2008

Electrical Energy System

Question 1: Variable speed can not be obtained with ____. ...

4 Comments. 114 views since Aug 17, 2008

Amplifiers

Question 1: A cascade IC is nowadays available for tuned PF and IF ampliefers.The significant feacture which makes it attractive is ...

4 Comments. 96 views since Sep 12, 2008

Electronics Objective Test

Question 1: With n nodes and b branches a network will have – ...

4 Comments. 93 views since Jul 5, 2010

Transducers

Question 1: Air cored inductive transducers are suitable for use ...

3 Comments. 87 views since Sep 16, 2008

Units and Measurement

Question 1: The metre is the length of the path travelled by light in vacuum during a time interval of __________ of a second." ...

4 Comments. 84 views since Aug 14, 2008

Ammeters,Voltmeters & Ohmmeter

Question 1: A make break switch is provided to disconnect the battery when the meter is not in use in ...

2 Comments. 81 views since Sep 15, 2008

RLC and Transformer

Question 1: Total impedance of a series RLC circuit: ...

1 Comments. 77 views since Aug 13, 2008

VLSI test

Question 1: Search and Repair is used for ___. ...

1 Comments. 72 views since Oct 1, 2008

Boolean Algebra

Question 1: RESULT OF: 59F - 2B8 ? ...

2 Comments. 60 views since Aug 14, 2008

Microprocessor: Pentium Family

Question 1: The memory addressing capacity of Pentium is ...

1 Comments. 57 views since Sep 13, 2008

Computer Organisation

Question 1: The time required for a gate or inverter to change its state is defined as ...

1 Comments. 55 views since Sep 25, 2008

Characteristics of Measuring Instruments

Question 1: A reading is recorded as 23.90 degree celsius.The reading has ___ significant figures. ...

2 Comments. 53 views since Sep 14, 2008

Intel 32 Bit Microprocessors

Question 1: The clock frequency of 80486 microprocessor is about ...

1 Comments. 44 views since Sep 12, 2008

Band Structure

Question 1: For a PN junction the collision of carriers with crystal ions results in ...

0 Comments. 39 views since Sep 12, 2008

Dynamic Characteristics Of Instruments

Question 1: An undamped 2nd order system instrument has a natural frequency of 500 Hz. It is subjected to a sinusoidal input of unit amplitude at 500 Hz. The amplitude of output is ...

0 Comments. 33 views since Oct 1, 2008

Energy Efficient Technology

Question 1: __________ determines the rating of capacitance connected in each step during the first hour of its operation and stores them in memory. ...

0 Comments. 25 views since Sep 14, 2008

Dense Wavelength Division Multiplexing

Question 1: DWDM stands for______________________________. ...

0 Comments. 19 views since Sep 17, 2008

Galvanometer

Question 1: A d’arsonval galvanometer uses a light and scale arrangement.The light source is placed 1 m away. From the moving system of galvanometer.The arrangement used is a circular scale calibrated in mm.The deflection indicated by the scale is ...

0 Comments. 14 views since Sep 21, 2008