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CBSE Class 10 Answered

wat is ammemeter?
Asked by mehaksaini | 04 Jul, 2009, 10:16: PM
answered-by-expert Expert Answer

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. Smaller values of current can be measured using a milliameter or a microammeter.

Answered by | 06 Jul, 2009, 01:29: AM

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CBSE 10 - Physics
write ohm's law for electric circuit. Also write the necessary formula for this .
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Nichrome wire of length L and radius R has resistance 10 ohm.How would the resistance of the wire change when: only diameter of the wire is doubled?Justify 
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