Physics · Electric current: drift velocity, mobility and their relation with electric current
In instantaneous current in a metallic wire is \mathrm{A} \) then find amount of
In instantaneous current in a metallic wire is \( \mathrm{i}=(5+10 \mathrm{t}) \mathrm{A} \) then find amount of charge flown through it from \( t=2 s \) to \( t=3 s \) is
- A. 100
- B. 24C
- C. \( 30 c \)
- D. 40C
Step-by-step solution
Charge is the integral of current over time: Q = ∫_{2}^{3} (5+10t) dt = [5t + 5t^2]_{2}^{3} = (15+45) - (10+20) = 60 - 30 = 30 C.
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