Electric Current - Law Dictionary Search Results
Home Dictionary Name: electric currentelectric current
the movement of electrically charged particles atoms or ions through solids liquids gases or free space the term is usually used of relatively smooth movements of electric charge through conductors whether constant or variable Sudden movements of charge are usually referred to by other terms such as spark or lightning or discharge In metallic conductors the electric current is usually due to movement of electrons through the metal The current is measured as the rate of movement of charge per unit time and is counted in units of amperes As a formal definition the direction of movement of electric current is considered as the same as the direction of movement of positive charge or in a direction opposite to the movement of negative charge Electric current may move constantly in a single direction called direct current abbreviated DC or may move alternately in one direction and then the opposite direction called alternating current abbreviated AC...
Dynamo electric
Pertaining to the development of electricity especially electrical currents by power producing electricity or electrical currents by mechanical power...
Electric
Pertaining to electricity consisting of containing derived from or produced by electricity as electric power or virtue an electric jar electric effects an electric spark an electric charge an electric current an electrical engineer...
Eddy current
An induced electric current circulating wholly within a mass of metal called also Foucault current...
Photo electric cell
A cell as one of two electrodes embedded in selenium which by exposure to light generates an electric current...
Commutator
A piece of apparatus used for reversing the direction of an electrical current an attachment to certain electrical machines by means of which alternating currents are made to be continuous or to have the same direction It may be attached to the end of the spindle of an electric motor where a brush is in contact sequentially with the parts of the spindle that conduct current to the different windings of the motor...
Ampere
Ampere, means a unit of electric current and is the unvarying electric current which when passed through a solution of nitrate of silver in water, in accordance with the specification set out in Annexure I, deposits silver at the rate of 0.001118 of a gramme per second; the aforesaid unit is equivalent to the current which, in passing through the suspended coil of wire forming part of the instrument marked 'Government of India Ampere Standard Verified' when the suspended coil is in its sighted position, exerts a force which is exactly balanced by the force exerted by gravity in Calcutta on the counter balancing iridio-platinum weight of the said instrument. [Indian Electricity Rules, 1956, s. 2 (1) (c)]...
Ohm
Ohm, means a unit of electric resistance and is the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14. 4521 grammes in mass of an uniform cross-sectional area and of a length of 106.3 centimeteres. The aforesaid unit is represented by the resistance between the terminals of the instrument marked 'Government of India Ohm Standard Verified' to the passage of an electric current when the coil of wire, forming part of the aforesaid instrument and connected to the aforesaid terminals is in all parts of a temperature of 30'C. [Indian Electricity Rules, 1956, R. 2(1)(ag)]...
Ohm
The standard unit in the measure of electrical resistance being the resistance of a circuit in which a potential difference of one volt produces a current of one ampeacutere As defined by the International Electrical Congress in 1893 and by United States Statute it is a resistance substantially equal to 109 units of resistance of the C G S system of electro magnetic units and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 144521 grams in mass of a constant cross sectional area and of the length of 1063 centimeters As thus defined it is called the international ohm...
Current official scale of rates
Current official scale of rates, the expression 'current' means 'vogue' or 'prevalent'; and 'current rate' may mean the rate obtaining at a particular time or at a future time or from time to time. The terms goes well with the present, future and recurrent, the words 'current official' scale of rates' in para IV of the agreement mean the official scale of rates current or prevalent from time to time during the currency of the agreement, Gopisetti Venkatratmam v. Vijayawada Municipality, AIR 1966 SC 353 (354, 355): (1965) 3 SCR 276. [Electricity Act, (9 of 1910), s. 21(2)]...
- << Prev.
- Next >>
Sign-up to get more results
Unlock complete result pages and premium legal research features.
Start Free Trial