CBSE Class 10 Answered
can u give a description of all the instruments such as the ammetre used in measuring the flow of current, whether current is flowing or not etc..whatsoever.
Asked by | 16 Apr, 2012, 07:18: PM
Expert Answer
An ammeter consists of a coil with very low resistance. when electric current flows through the coil, the coil induces a magnetic field which turns the needle.An ammeter is a measuring instrument used to measure the electric current in a circuit. Electric currents are measured in amperes (A), hence the name. Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters.
Answered by | 17 Apr, 2012, 02:58: PM
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