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Michael Faraday is credited with inventing the concept of electromagnetic field detection in the early 19th century, which later led to the development of the EMF detector. The modern EMF detector is a device that can measure electromagnetic fields in the environment, and is commonly used in paranormal investigations and by electricians to detect sources of electromagnetic interference.
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A device that provides an emf?
An example of a device that provides an electromotive force (emf) is a battery. A battery produces a voltage difference between its terminals, which creates an electric current when connected to a circuit. This emf is the driving force that pushes electrons through the circuit.
What is the Condition for terminal voltage across a secondary cell to be equal to its emf?
The condition for the terminal voltage across a secondary cell to be equal to its emf is when there is no current flowing through the cell. When there is no current, there is no voltage drop across the internal resistance of the cell, and thus the terminal voltage equals the emf.
Why emf is not zero when field current is zero?
Even when the field current is zero, there can still be a residual magnetic field present in the system, which can induce an electromotive force (emf) in a nearby conductor. This phenomenon is explained by Faraday's law of electromagnetic induction, where a changing magnetic field can induce a voltage in a closed loop.
What is the term for he phenomenon of emf development between two different metals placed in contact?
The term for the phenomenon of emf development between two different metals placed in contact is called the thermoelectric effect. This effect occurs because of the temperature difference between the two metals, which creates a potential difference or voltage.
What can be used to help detect a carbon monoxide build upon a boat?
A carbon monoxide detector.
Where can a EMF detector be bought?
EMF detectors can be purchased at stores such as Amazon and Home Depot. It is also possible to download an EMF detector app to your phone, computer, or tablet.
Who invented EMF?
danver apilado
When was the fire detector invented?
The ionization type smoke detector was invented in 1931 in Switzerland.
What button do you press on the elevator on ghost story island?
Use your EMF Detector and go inside the elevator.
How do EMs work?
The EMF works by detecting electromagnetic fields that are present. You use an EMF detector, like a K-II meter to detect these fields. EMF fields that are too high can be dangerous, and can cause nausea, dizziness, paranoia, and other things.
When was the medal detector made?
The metal detector was invented in 1931 by Gerhard Fisher.
When was the metal detector made?
The metal detector was invented in 1931 by Gerhard Fisher.
Who invented the smoke detector?
timothy lunsford
When was the heart detector invented?
IF you are alive, you have a heart
Why was the lie detector invented?
to see if people were lying
When was the inventor of the metal detector born?
the metal detector was invented because people in old days use to use it so they could find stuff in there body I think
Can you measure the emf of a cell with a voltmeter?
you can, but you will not get accurate answer as voltmeter consumes some current. so, potentiometer is used instead to measure emf ---- the potentiometer must be set to the expected emf from the cell before you put the zero detector in circuit if its set too high it will charge the cell too low it will load the cell perhaps if you dont know the voltage of the cell before you measure it you should get a hi impedance voltmeter(electrometer) to set the potentiometer as close as you can manage before you connect the zero detector
