answersLogoWhite

0


Best Answer

12 Vdc

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the supply voltage on an automotive coil?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Movies & Television

Why current lead voltage in coil?

because a coil is an inductor,for current leads voltage in an inductorAnswerIt doesn't! Current lags voltage in a coil. In a purely-inductive circuit, the current lags the supply voltage by 90 degrees. The reason for this is 'self inductance'. Whenever a current changes, a voltage is induced into the coil which opposes that change in current. The maximum self-induced voltage occurs when the rate of change in current is greatest. The greatest positive rate of change of a.c. current occurs when that current is passing through the zero axis of its waveform, so the greatest (negative) induced voltage occurs at thatsame point, which is one-quarter of the wavelength, or 90 degrees. In accordance with Kirchhoff's Voltage Law, the supply voltage must be in antiphase with the induced voltage. So when the peak induced voltage is negative, the peak applied voltage must be positive. Or, to put it another way, the peak value of the applied voltage must occur 90 degrees before the peak value of the current -so the current lags the applied voltage by 90 degrees.


Can the power supply provide a negative voltage output?

Yes. Depending on the design, the power supply can provide any voltage desired.


What is the most electricity you can make with a magnet coil?

A coil doesn't make electricity it can however alter voltage and amperage output.


How do you amplify voltage?

if it is an A.C supply we can amplify by transformers, transistors, voltage doublers and voltage multipliers. but if it is an D.C supply, the voltage can be amplified only by means of choppers (i.e buck converters, boost converters and buck boost converters)


What is the peak inverse voltage rating of diode in bridge rectifier?

2x the peak supply voltage!

Related questions

Do you add electrical supply voltage and induced voltage of a coil to get total voltage on the coil?

The induced voltage acts to oppose any change in current that is causing it. So, if the current is increasing, then the induced voltage will act in the opposite direction to the supply voltage; if the current is decreasing, then the induced voltage will act in the same direction as the supply voltage.


How do you connect energy meter in circuit?

pressure coil or voltage coil across the supply and the current coil in series.


What is the difference between current coil and voltage coil?

These terms apply to the coils inside a wattmeter. 'Pressure coil' is an archaic term for 'voltage coil', which is connected in parallel with the supply, while the 'current coil' is connected in series with the load.


What is current coil and voltage coil?

The current coil is one through which the current of source can pass. This coil is connected in series. The voltage coil is connected parallel to the applied voltage. In the current coil the quantity of current flowing is proportional to the current flowing in load while in the voltage coil, current flowing is proportional to applied supply voltage. The voltage coil current is independent of current flow in load. For a complete understanding, please refer to a watt meter diagram.


Why is there a difference in current in a coil when you apply dc voltage and then AC voltage to it?

A coil has both resistance and inductance. When you apply a d.c. voltage, the opposition to current is the resistance of the coil. When you apply an a.c. voltage, the opposition to current is impedance -the vector-sum of the coil's resistance and its inductive reactance. Inductive reactance is proportional to the inductance of the coil and the frequency of the supply.


What could cause voltage in a coil that has no current running through it?

A: A coil does store energy and this energy will be released after the current is removed is evident by a reversal of voltage across it before it collapse finally with less and less voltage <<>> Using a volt meter to ground, you would see the supply potential coil voltage on the coil end, if the return wire from the coil was open.


How much voltage does an automobile battery usually supply?

when in good working condition an automotive battery should supply between 12.6 and 13.8 volts


What is the function of magneto coil?

magneto coil is replacement supply voltage for lights and others when bike runs, it also acts as a charger for battery.


What is meant by a primary coil and a secondary coil?

In a transformer, the primary coil is the coil that has voltage applied to it. The secondary coil is the coil that we take voltage from. Transformers are used to step up voltage, step down voltage, or simply to isolate circuits.


What is function of pressure coil in a watt meter?

A 'pressure coil' is an archaic term for a 'voltage coil' (UK terminology) or 'potential coil' (US terminology), as opposed to the 'current coil' in a wattmeter. This coil is connected in parallel with the supply, while the current coil is connected in series with the load.


How does ignition coil transform low voltage to high voltage?

A: The coil is really a transformer. The 12 enter the coils and charges with current as the point opens up this charge is released as energy about 100 mw. This release is transformed to hi voltage at the secondary by a primary to secondary turn ratio like 1:3333 more or less. Since the primary is open the same ratio will feed the primary that is why we see ringing and the point have capacitor to protect from false firing. <<>> The coil is a transformer, but we know that DC will not work with a transformer. A supply of 12 volts DC is applied to the coil's primary winding. In series with this coil is a set of breaker points. These points are used to interrupt the 12 volt supply from the coil. When the 12 volt supply is interrupted, the magnetic field around the primary winding collapses. This collapsing field induces a voltage into the secondary coil of the transformer. The secondary coil has many more turns that the primary coil and the voltage induced will be in the 10,000 to 15,000 volt range. This high voltage is needed to make the voltage jump across the air gap in the spark plug.


If the current through a heater coil is 5 amp and the supply voltage is 120 volts the coil resistance is?

The formula you are looking for is R = E/I. Resistance = Volts/Amps.