Lecture 5-1A charge of Q is placed on the inner ball. What is the total charge induced on the inside surface of the outer shell?Physics 219 – Question 1 – January 25, 2012a)0b)Qc)- Qd)- Q/2e)depends on the net charge on the outer shell
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Lecture 5-2Electric CurrentCurrent = charges in motion0limtqIt Magnituderate at which net positivecharges move across a cross sectional surfaceUnits:[I]= C/s = A (ampere)Current is a scalar, signed quantity, whose sign corresponds to the direction of motion of netpositivecharges by convention