Current Electricity Charging Discharging Of Capacitors Question 685
Question: The amount of charge Q passed in time t through a cross-section of a wire is $ Q=5t^{2}+3t+1. $ The value of current at time t=5 s is
Options:
A) 9 A
B) 49 A
C) 53 A
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ I=\frac{dQ}{dt}=10t+3 $ At t=5s, $ I=10\times 5+3=53A $
BETA
