| Advanced Math |
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| Question : |
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What is 'Ampere' ? |
Answer : |
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Ampere is the unit measure of electric current. It can be represented by symbol A. |
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Ampere is named after André-Marie Ampère, was a French physicist
and mathematician who is considered as one of the main discoverers of electromagnetism. |
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The absolute ampere which is the legal standard of current since 1950 is
the current in each of two long parallel wires which carry equal currents and for which there is a force of
2.10-7 newton per meter acting on each wire. |
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However before 1950, the legal standard of current was the
international ampere which is the current when passed through a solution of silver nitrate deposits silver at the rate
of 0.001118 grammes per second. One international ampere equals 0.999853 absolute ampere. |
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Other units of electric current are
milliamp(mA) = 10-3A and microamp(mA) = 10A-6. |
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Ampere is named after André-Marie Ampère, was a French physicist
and mathematician who is considered as one of the main discoverers of electromagnetism. |
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