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naatp

  • 3 years 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
    • 3 years ago
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    \[i(t)=\frac{ dq }{dt }=3t^2-4t+6\] \[i(2)=3(2)^2-4(2)+6=10A\]

  2. naatp
    • 3 years ago
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    Apparently the answer is \[\frac{ 3 }{ 10\Pi } \] cm/s

  3. ASAAD123
    • 3 years ago
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    what's this unit?

  4. naatp
    • 3 years ago
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    related rates

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