Quantcast
Channel: Question and Answer » emf
Browsing latest articles
Browse All 12 View Live

Image may be NSFW.
Clik here to view.

How to measure the EMF in the air and log it into a csv file? [closed]

I would like to build a device measures the EMF in air,it should be sensitive for a wide band (broadband) EMF, And I want it to be able to log into a csv file the time and amplitude of EMF (intensity)....

View Article



Image may be NSFW.
Clik here to view.

Detect multiple corn bags through wood with a sensor

I’m working on a project for school, and wondering what options I have for detecting the corn bags through a piece of wood. More specifically, we are creating an automated cornhole scorer. Sources of...

View Article

EMF in an Open Circuit?

Lets assume we have a wire passing a magnetic field, it is know that EMF is induced due to the magnetic field, what if the wire is not connected to a circuit what happens? Is there ay voltage in the...

View Article

Harvesting Back EMF Possible?

Let me start by saying that I am not talking about the free energy or “overunity” idea of back EMF. When searching around for information I can only seem to find information from free energy sites,...

View Article

Can't add marker saved as an EMF to the style manager

I’m trying to add a marker I created in PowerPoint and saved as an EMF to ArcMap. The current questions all state that all I have to do is open the style manager and go to the marker symbols folder,...

View Article


Synchronous generator on an infinite bus

A 24 kV, 500 MVA synchronous generator is connected to an infinite bus of 22 kV. The synchronous reactance of the generator is 0.85 pu and the resistance of the generator is negligible. The internal...

View Article

How to Reduce Serial Noise from Refrigerator

I am controlling the compressor of a compact refrigerator using an ArduinoMEGA and an optoisolated relay block. The Arduino is connected to the PC using a serial over USB (Atmel version). Since the...

View Article

Image may be NSFW.
Clik here to view.

What are the consequences of connecting two motors in parallel?

I am using two DC motors rated at 36V and maximum current draw of 5A. To reduce the number of motor-controllers, I am planning to connect them in parallel. The two motors are required to run at the...

View Article


Do external EMFs affect in some way a capacitor?

I Know that inducters are affected by external magnetic fields .The affect depends on the construction of the inducter . What I would like to know is how capacitors are affected by external...

View Article


Image may be NSFW.
Clik here to view.

Ideal Op Amp and its Input Voltage

In an ideal operational amplifier, I understand that the inputs draw no current (due to infinite impedance). So, in the example below, the value of Vp would equal the value of the EMF (because there is...

View Article
Browsing latest articles
Browse All 12 View Live




Latest Images