Question

A current in a wire is given by the equation, the charge through cross section of wire in time interval t = 3 s to t = 5 s is t = 5 s is

• A. 32.33 C
• B. 43.34 C
• C. 45.5 C
• D. 42 c

Answer 1

Answer: (B)

43.34 C

Answer 2

: As

dQ = Idt

dQ = dt

$= \left[ \frac { 2 } { 3 } \left( 5 ^ { 3 } - 3 ^ { 3 } \right) - \frac { 3 } { 2 } \left( 5 ^ { 2 } - 3 ^ { 2 } \right) + ( 5 - 3 ) \right]$