Which is a vector quantity
Density
Magnetic flux
Intensity of magnetic field
Magnetic potential
Consider a tightly wound $100$ turn coil of radius $10 \;cm$, carrying a current of $1 \;A$. What is the magnitude of the magnetic field at the centre of the coil?
Tesla is the unit of
Magnetic effect of current was discovered by
Find magnetic field at centre $P$ if length of side of square loop is $20\, cm$
If the radius of a coil is halved and the number of turns doubled, then the magnetic field at the centre of the coil, for the same current will