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naatp one year ago The quantity of a charge Q that passes through a surface at time t (seconds), is given by Q=t^3 -2t^2 +6t +2. The current is defined as the rate of change of the charges with respect to t. Find the current when t=2

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1. ASAAD123

$i(t)=\frac{ dq }{dt }=3t^2-4t+6$ $i(2)=3(2)^2-4(2)+6=10A$

2. naatp

Apparently the answer is $\frac{ 3 }{ 10\Pi }$ cm/s

3. ASAAD123

what's this unit?

4. naatp

related rates

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