The shape of the magnetic field lines due to an infinite long, straight current carrying conductor is :
NEET 2022, Easy
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Straight current carring wire produces circular magnetic field.
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A hairpin like shape as shown in figure is made by bending a long current carrying wire. What is the magnitude of a magnetic field at point $P$ which lies on the centre of the semicircle ?
The magnetic field on the axis of a circular loop of radius $100\,cm$ carrying current $I=\sqrt{2}\,A$, at point $1\,m$ away from the centre of the loop is given by
A current of $10\,A$ is passing through a long wire which has semicircular loop of the radius $20\,cm$ as shown in the figure. Magnetic field produced at the centre of the loop is
The average dipole moment of $Fe$ atoms is $1.8 × 10^{-23}\ A-m^2$ . The magnetic moment of an iron rod of length $10\ cm$ and diameter $1\,cm$ is........$A-m^2$ : (density and at. wt. of $Fe$ are $7.87\ g/cm^3$ and $55.87$ )
Statement $-1$ : Path of the charge particle may be straight line in uniform magnetic field. Statement $-2$ : Path of the charge particle is decided by the angle between its velocity and the magnetic force working on it
In an experiment, electrons are accelerated, from rest, by applying, a voltage of $500 \,V.$ Calculate the radius of the path if a magnetic field $100\,mT$ is then applied. [Charge of the electron $= 1.6 \times 10^{-19}\,C$ Mass of the electron $= 9.1 \times 10^{-31}\,kg$ ]