اگر سولینائیڈ کی لمبائی کو دوگنا کر دیا جائے اور اس میں سے گزرنے والے کرنٹ کو 9 گنا بڑھا دیا جائے تو سولینائڈ کے اندر مقناطیسی میدان کتنا بڑھے گا؟
Explanation
If the length of a solenoid is doubled, and the current passing through it is increased 9 times, the magnetic field inside the solenoid will increase by 18 times.
Spring force: In an ideal spring, the force required to stretch a string from its equilibrium position is directly proportional to the extension of the spring.
This is known asHooke's lawand commonly written:
Fs = -kx
Where Fsis the spring force, x is the displacement from the equilibrium position and k is the spring constant.