Amperes

Contactors range from those having a breaking current of several amperes to thousands of amperes and 24 V DC to many kilovolts.

Reactive power The apparent power S (measured in units of volt-amperes) is the vector sum of the reactive power Q (in volt-amperes reactive) and the real power P (in watts).

It makes sense that Pikachu stores electricity, being an electric type--a steady 1,000 amperes, according to early promotional materials--and the fact that it stores electricity in its cheeks is a common point brought up in its Pokédex entries.

A cold-cathode version of the thyratron, which uses a pool of mercury for its cathode, is called an ignitron ; some can switch thousands of amperes.

A good permanent magnet can have a magnetization as large as a million amperes per meter.

A large solidly grounded distribution system may have thousands of amperes of ground fault current.

Application The majority of ammeters are either connected in series with the circuit carrying the current to be measured (for small fractional amperes), or have their shunt resistors connected similarly in series.

Electric currents are measured in amperes (A), hence the name.

For any point experiencing a current, if the number of charged particles passing through it or the charge on the particles passing through it is increased, the amperes of current at that point will proportionately increase.

Iron can have a magnetization of around a million amperes per meter.

Knife switches are made in many sizes from miniature switches to large devices used to carry thousands of amperes.

Many North American vacuum manufacturers give the current only in amperes (e.g. "6 amps"), and the consumer is left to multiply that by the line voltage of 120 volts to get the approximate power ratings in watts.

Non-zero current response is proportional to the voltage supplied and is linear to 60 amperes for this particular (25 A) device.

Power factors below 1.0 require a utility to generate more than the minimum volt-amperes necessary to supply the real power (watts).

Solid-state relays rated to handle as much as 1,200 amperes have become commercially available.

Such industrial grade resistors can be as large as a refrigerator; some designs can handle over 500 amperes of current, with a range of resistances extending lower than 0.04 ohms.

Switched shunts are rarely used for currents above 10 amperes.

The ampere is equivalent to one coulomb (roughly main times the elementary charge ) per second. citation Amperes are used to express flow rate of electric charge.

The electric match, which consists of an electrical conductor wrapped in a combustible material, activates with a current pulse between 1 and 3 amperes in less than 2 milliseconds.

The reactive power (measured in units of volt-amperes reactive or var) is given by: : where is the phase angle between the current and voltage.