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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....
What three overlapping areas are potential emf hazards separated into?
Potential electromagnetic field (EMF) hazards are typically categorized into three overlapping areas: electric fields, magnetic fields, and radiofrequency fields. Electric fields arise from voltage sources, magnetic fields are generated by current flow, and radiofrequency fields are associated with wireless communications and broadcasting. Each of these areas can contribute to exposure risks depending on the intensity and duration of exposure. Understanding these categories helps in assessing and mitigating potential health impacts from EMF sources.
Can back emf in an inductor be in the same sense as emf of source?
yes..only the application is different.
What is Back emf of DC motor?
In dc motor, the armature conductors are revolving in the magnetic field and emf is induced in the armature conductors. The direction of the induced emf is in opposite direction to the applied voltage as per Flemings left hand rule. So, the induced emf in motor is called as back emf or counter emf. Vydehi
What is the difference between emf and mmf?
emf is electromotive force mmf is magnetic motive force emf drives electon where as mmf drives magnetic field
What are the 3 sources of EMF?
The three primary sources of electromagnetic fields (EMF) are natural sources, such as the Earth's magnetic field and cosmic radiation; man-made sources, including power lines, electrical appliances, and telecommunications devices; and industrial sources, which encompass equipment like transformers and generators used in various sectors. Each of these sources emits EMF at varying frequencies and intensities, impacting both the environment and human health. Understanding these sources is crucial for assessing exposure and potential risks.
What is voltage sources?
It is the souce that produce the emf force that drive the electron in a metal material
What is an EMF detector used for and how does it help in detecting electromagnetic fields?
An EMF detector is used to measure and detect electromagnetic fields. It helps in identifying sources of electromagnetic radiation, such as electrical wiring, appliances, or electronic devices. The detector works by picking up changes in the electromagnetic field strength and alerting the user to potential sources of EMF exposure.
What causes current flow-emf?
Current flow in a circuit is driven by electromotive force (emf), which is generated by sources such as batteries or generators. Emf creates a potential difference between two points in the circuit, causing electrons to move through the conductive material. This movement of charge constitutes electric current. Factors like resistance also play a role in determining the amount of current that flows for a given emf.
What substances can be injested to make the body more conductive for EMF?
There is no substance that can be ingested to make the body more conductive to electromagnetic fields (EMF). EMF exposure is a complex topic that is influenced by various factors, but altering the body's conductivity through ingestion is not a safe or practical solution. It is important to focus on reducing exposure to EMF through other means such as distance from sources, shielding, and time limits.
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.
While discharging which is greater TPD or EMF?
EMF is greater
When was EMF - band - created?
EMF - band - was created in 1989.
When did EMF - band - end?
EMF - band - ended in 2009.
What three overlapping areas are potential emf hazards separated into?
Potential electromagnetic field (EMF) hazards are typically categorized into three overlapping areas: electric fields, magnetic fields, and radiofrequency fields. Electric fields arise from voltage sources, magnetic fields are generated by current flow, and radiofrequency fields are associated with wireless communications and broadcasting. Each of these areas can contribute to exposure risks depending on the intensity and duration of exposure. Understanding these categories helps in assessing and mitigating potential health impacts from EMF sources.
