Find magnetic field at centre $P$ if length of side of square loop is $20\, cm$
Find magnetic field at centre $P$ if length of side of square loop is $20\, cm$
- [AIIMS 2019]
- A
$12 \sqrt{2} \times 10^{-6} T$
- B
$12 \times 10^{-6} T$
- C
$6 \times 10^{-6} T$
- D
$6 \sqrt{2} \times 10^{-6} T$
Similar Questions
A current $I$ flowing through the loop as shown in the adjoining figure. The magnetic field at centre $O$ is
A current $I$ flowing through the loop as shown in the adjoining figure. The magnetic field at centre $O$ is
A length $L$ of wire carries a steady current $I$. It is bent first to form a circular plane coil of one turn. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at the centre caused by the same current is
A length $L$ of wire carries a steady current $I$. It is bent first to form a circular plane coil of one turn. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at the centre caused by the same current is
- [AIIMS 1980]
Two identical wires $A$ and $B$, each of length '$I$', carry the same current $I$. Wire $A$ is bent into a circle of radius $R$ and wire $B$ is bent to form a square of side '$a$'. If $B_A$ and $B_B$ are the values of magnetic field at the centres of the circle and square respectively, then the ratio $\frac{{{B_A}}}{{{B_B}}}$ is
- [JEE MAIN 2016]
A portion of a conductive wire is bent in the form of a semicircle of radius $r$ as shown below in fig. At the centre of semicircle, the magnetic induction will be
A portion of a conductive wire is bent in the form of a semicircle of radius $r$ as shown below in fig. At the centre of semicircle, the magnetic induction will be
Give differences between Biot-Savart law and Coulomb’s law.
Give differences between Biot-Savart law and Coulomb’s law.