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1) If a body has positive charge, then what does it mean2) The charge on an electron is 16 x 10-1°С. Find the number ofelectrons that will flow per second to constitute a current of 2A.3) If work done in moving a charge of 20 mC from infinity to a pointO in an electric field is 15 J, then what is the electric potential atthis point? |
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Answer» Answer: Current is the amount of CHARGE passing through a conductor in a particular interval of time. So according to the definition, the formula for the current is: I = Q/t I = 2 A and t = 1 sec Therefore, Q = I*t Q = 2*1 = 2 C One electon consists of a charge of 1.6*10^-19 C. Then the number of electrons passing would be: Q = n*e n = Q/e n = 2/(1.6*10^-19) = 1.25*10^19 electrons Explanation: |
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