Electronics Interview Questions

 
1.
6dB pad introduces how much attenuation?
2.
How to check the Mobile Battery charge status?
3.
What is the exactly meaning of manual testing?
4.
What is the Buffer size of transmission buffer or rectiption buffer in TM,UM and AM of RLC?
5.
Explain negative test cases for testing mobile phones?
6.
What is the difference between TDMA and FDMA?
7.
What will be the common test case for SMS and Mp3 player applications?
8.
How many memory locations can be addressed by a microprocessor with 14 address lines?
9.
Which type of architecture 8085 has?
10.
How do you make a memory card of mobile phone?
11.
Why do I not see the battery and capacitor combination for power backup?
12.
When recording infrasound waves or microwaves how do they differ from one another? What is the best way to read them?
13.
How can we prove that radio waves are sine waves? What makes them sine?
14.
Is it possible to reverse the order of a Variable Frequency Drive? Ex: I want to be able to create 120v power from a variable speed engine, with at least 6kw of power.
15.
Why does charging batteries take lengthy periods? What can be done to quicken the speed?
16.
What do mean by "flow of electron"?
17.
What are encoder and the decoder? What are the uses of these two devices? Also, write about how it works with circuit diagram.
18.
Do you have any ideas how to make a ping-pong ball launcher that reloads automatic and shoots automatically?
19.
Is it possible to build an AC or DC variable-speed generator with a variable field current, controlled by a signal from a torque sensor connected to the shaft of the generator (i.e., net torque = 0)?
20.
What is the significance of "4-20 mA" signal in hart protocol?
21.
The current through a resistor of 50 ohms in an AC circuit at t = 0.008 s is 65% of the peak value. The smallest possible frequency of the generator delivering the current is
22.
What is the difference between Photodiode and Solar cell?
23.
Can you explain electricity at atom level and if possible show some diagrams please
24.
How can the electromagnetic can travel in air and not lose any information contained in them?
25.
How is the transmission of a signal in a computer over x number of clock cycles translated into binary?
26.
Can we calculate the resistor if it is installed in circuit board?