NOTE

Tuesday, February 14, 2012

EXERCISE ELECTRICITY 7


        If a current of 0.8 A flows in a wire, how many electrons pass through the wire in one minute?  (Given: The 
charge on an electron is 1.6 x 10-19C
An electric current of 200 mA flows through a resistor for 3 seconds, what is the 
(a)                electric charge
(b)               the number of electrons which flow through the resistor?

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