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EMF (short for "electromotive force" - not a well-chosen name, since it isn't exactly a force) is more properly called a "voltage". A device that provides that can be a battery, or you can get the voltage from the outlets in your home.
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Who invented the EMF detector?
Toy Ghost Detector Device Inventor or EMF Detector Inventor was Joseph P. Carcia, III Patent #4,971,592 Date - November 20, 1990
A device which provides a continuous record of the humidity?
Hygrograph
Why emf is not zero when field current is zero?
because zero is zero
What is the term for he phenomenon of emf development between two different metals placed in contact?
thermocouple effect
What is the Condition for terminal voltage across a secondary cell to be equal to its emf?
in an open circuit, i.e. no current drawn from the cell, producing no drop across its internal impedance
What is a device that provides an emf?
what is an led
Who invented the EMF detector?
Toy Ghost Detector Device Inventor or EMF Detector Inventor was Joseph P. Carcia, III Patent #4,971,592 Date - November 20, 1990
What is voltmeter and thermometer?
Voltmeter is a device to measure EMF and potential difference in terms of volts Thermometer is a device to measure the temperature in terms of K(kelvin),C(Celsius) F(Fahrenheit)
How are emf measured?
emf in volts
Why emf of battery driving potentiometer is greater than emf of the cell to be measured?
Bcoz the emf which is to be measured is less than emf of driving cell....
Does motional emf call induced emf?
yes indused emf is also called motional emf. If an open coil is subjected to a variable magnetic field, at the ends of the coil a potential difference is induced which is called induced emf. If a coil is connected to an emf source and switched on, the rising current will produced an variable magnetic field which in turn produces an emf. It is called back emf.
Can you define the entertainment device?
A device or gadget which provides entertainment via the means of media
A device or circuit that provides power to the rest of the circuit or system is called what?
A device or circuit that provides power to the rest of the circuit or system is called a power supply,
What happens to the electron flow within a conductor if the EMF or voltage source is removed?
If the EMF or voltage source is removed from a conductor, the electron flow will eventually stop. This is because the EMF or voltage source provides the force that drives the movement of electrons through the conductor. Without this force, the electrons will no longer be pushed and will come to a rest.
Is an external device that provides connections to peripherals through ports built into the device?
port replicator
A device which provides a continuous record of the humidity?
Hygrograph
What is a device which provides a continuous record of the temperature?
thermometer
