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How can a change in voltage in a coil of wire be transferred to a neighboring coil of wire without physical contact?
Wiki User
∙ 11y ago
When electric current flows through a coil of wire it generates a magnetic field. Variable current generates variable magnetic field. When a second coil is placed in a variable magnetic field of the first one an electric current is generated in it. Magnetic nature of the connection between two coils can be proved by the fact that it takes place only when the second coil is aligned with the magnetic field of the first one. Magnetic field of a coil can be traced with a compass.
Wiki User
∙ 11y ago
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What is physical meaning of operating voltage of detectors?
What is the physical meaning of Operating Voltage of detector
Should there be voltage readings across a closed contact?
For all practical purposes NO. The only voltage measured will be the voltage drop of the contact itself. This should be very low if the contact is good.
What is the effect of diode voltage drop as the output voltage?
The effect of diode voltage drop as the output voltage is that the input voltage will not be totally transferred to the output because power loss in the diode . The output voltage will then be given by: vout=(vin)-(the diode voltage drop).
What is the physical meaning of operating voltage of detector?
What is the physical meaning of Operating Voltage of detector
What determines the voltage that is transferred from the primary to the secondary winding?
The turns ratio between the primary and the secondary.
Can voltage flow without use of wire?
We talk about current flowing, not voltage. Current can flow without wire as is witnessed in a lightening storm. Voltage can be transferred via induction through the air as well.
Is there a different when electrocuted with a current of high and low voltage?
High-voltage systems have extremely high levels of energy and, so, coming into contact* with a high voltage conductor will likely cause catastrophic external burns at the current's entry/exit points, as well as internally along the current path. The likely of recovery from high-voltage electrocution is low. Anyone who does recover may have irreversible organ damage. (*It's not even necessary to come into physical contact with a high-voltage conductor, as merely approaching within its vicinity may be enough for flash-over to occur.)
What is a 2A Dry contact?
A dry contact is a contact that does not supply voltage. In the realm of contactors and relays, it is simply a contact or set of contacts that switches another user-defined circuit. It doesn't provide any voltage on its own, it just opens and closes, much like a switch. A 2 amp dry contact is rated for up to 2 amps of current at the stated voltage, which is also likely stamped on the contact.
What is step up tranformer?
A step-up transformer is a transformer that increases voltage that is transferred through power lines.
What causes contact chatter in electrical circuit?
Overload can cause contact chatter. Once the contact closes, the voltage in the circuit collapses and that causes the relay to drop out. At this pint the relay energizes, since the voltage is back. This cycle will continue on.
What is transformers necessity?
Outside the homes, electricity is transferred at several thousand volts, for reasons of efficiency (less energy is wasted that way). This voltage is far too high for home use. (Also, home devices are set up for a specific voltage.)Outside the homes, electricity is transferred at several thousand volts, for reasons of efficiency (less energy is wasted that way). This voltage is far too high for home use. (Also, home devices are set up for a specific voltage.)Outside the homes, electricity is transferred at several thousand volts, for reasons of efficiency (less energy is wasted that way). This voltage is far too high for home use. (Also, home devices are set up for a specific voltage.)Outside the homes, electricity is transferred at several thousand volts, for reasons of efficiency (less energy is wasted that way). This voltage is far too high for home use. (Also, home devices are set up for a specific voltage.)
Does voltage have decimals?
Obviously. Any physical measurements can have decimals.
