A length of wire RS has a circular cross-section.
At end R of the wire, the cross-sectional area is A.
At end S of the wire, the cross-sectional area is $\frac{A}{2}$.
Charge Q takes time t to pass through end R of the wire. There is a constant electric current in the wire.
How much charge will pass through end S in a time interval of $\frac{t}{4}$?
1 )
$\frac{Q}{8}$
$\frac{Q}{4}$
3 )
$\frac{Q}{2}$
4 )
Q
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...