EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ohms
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volts
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amps
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watts
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Detailed explanation-1: -What is the SI unit of current? The SI unit of current is ampere.
Detailed explanation-2: -The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10–19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of Cs.
Detailed explanation-3: -Current is the rate of flow of charge across a cross-section. It is a scalar quantity. Its S.I. unit is ampere (coulomb per second). If 1 ampere current flows through a conductor, it means that 6.25 x 1018 electrons pass in 1 second across that cross-section of conductor.
Detailed explanation-4: -We know that ampere is the unit of current. Since this device measures the value in amperes, it’s known as ammeter.