The battery on a bicycle is connected in parallel to its lamp and bell.
The circuit includes two switches, ${S_1}$ and ${S _2}$.
The cyclist closes ${S_1}$ to light the lamp.
She then also closes ${S_2}$ to sound the bell.
What happens to the current in the battery and the power output from the battery when the cyclist closes ${S_2}$?
A
2 )
B
3 )
C
4 )
D
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...