Question

9. The electric current flow with time (3t+ 2t+ 5)A find the flow of charge at t=3sec
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Answer 1

I,current=3t+2t+5. t= 3 sec

= 5t+5

= 5(3)+5

=15+5

=20 A

charge Q=?

now

I=Q/t

Q=It

= 20×3=60 coulomb