what is an led
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.
there are two kinds of "EMF" electroMagnetic field and Electromotive force. the former is given off by electricity through a conductor (it doesn't have to be a coil or have a core) the latter can be magnetic flux or electromagnetic waves.
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.
A battery clip is used to connect a battery securely to a device or circuit by attaching to the battery terminals. It provides a convenient way to make and break the connection between the battery and the device without needing to solder the wires directly to the battery terminals.
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)
EMF apps may not always accurately measure electromagnetic fields. Their effectiveness can vary depending on the app and the device it is used on. It is recommended to use professional equipment for precise measurements.
emf in volts
Bcoz the emf which is to be measured is less than emf of driving cell....
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.
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 a power supply,
EMF is greater