Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
JEE Main & Advanced
Physics
Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
Question Bank
Heating Effect of Current
question_answer
The maximum current that flows through a fuse wire before it blows out varies with its radius as [SCRA 1998]
A) \[{{r}^{3/2}}\]
B) r
C) \[{{r}^{2/3}}\]
D) \[{{r}^{1/2}}\]
Correct Answer:
A
Solution :
It is called safe current and is proportional to \[{{r}^{3/2}}\].