List of top Physics Questions on Biot-Savart Law asked in CBSE Class XII

Two identical circular coils A and B of radius $10$ cm each are placed concentrically and mutually perpendicular in XY and YZ planes respectively. Currents of $1$ A and $\sqrt{3}$ A flow anticlockwise in the coils as seen from YZ plane. Find the magnitude of the net magnetic field at the common centre of the coils.

Two infinitely long straight conductors lie along the x-axis and y-axis in the plane of the page. If they carry current $I$ each along $+x$-axis and $+y$-axis respectively, the net magnetic field at a point with position vector $\vec{r} = (3\hat{i} + 4\hat{j})$ m will be:

A person is standing facing geographic north and a vertical wire in front of him is carrying a current in downward direction. The direction of magnetic field at a point on the right side of wire is:

A straight long wire lying along $y$-axis, carries a current of $1\ \text{A}$ along $-y$ direction. The magnetic field due to the conductor at a point $(50\ \text{cm},\,0,\,0)$ will point along:

A circular loop has radius $R$ and carries current $I$ as shown in figure. In order that the net magnetic field at the centre of the loop is zero, the current in wire AB should have magnitude:



A straight conductor lies along $x$-axis. It carries a current of 10 A along $+x$ direction. The magnetic field $\vec{B}$ due to 1 cm segment of this conductor, centred at the origin, at a point $(0, 1$ m$, 0)$ is:

Write the expression for the magnetic field due to a current element in vector form. Consider a \(1\,\text{cm}\) segment of a wire, centered at the origin, carrying a current of \(10\,\text{A}\) in positive \(x\)-direction. Calculate the magnetic field \(\vec{B}\) at a point \((1\,\text{m},1\,\text{m},0)\).
Write the expression for the magnetic field due to a current element in vector form. Consider a \(1\,\text{cm}\) segment of a wire, centered at the origin, carrying a current of \(10\,\text{A}\) in positive \(x\)-direction. Calculate the magnetic field \(\vec{B}\) at a point \((1\,\text{m},1\,\text{m},0)\).