Question Text
Question 1 :
An emf is induced in an aeroplane during its ascent and descent in east-west direction due to
Question 2 :
Magnet is moved towards a coil first slowly and then quickly, then the induced emf is:
Question 3 :
A helicopter rises vertically with a speed of 100 m/s. If helicopter has length 10 m and horizontal component of earth's magnetic field is $5\times 10^{-3} Wb/m^2$, then the induced emf between the tip of nose and tail of helicopter is:
Question 7 :
A coil of resistance $10\Omega$ and $1000$ turns have the magnetic flux line of $5.5\times 10^{-4}Wb$. If the magnetic flux changed to $5\times 10^{-4}Wb.$ in $0.1\ sec$, then the induced charge in coil is
Question 8 :
If circular coil with $N_{1}$ turns is changed in to a coil of $N_{2}$ turns. What will be the ratio of self inductances in both cases.
