How do you solve an unbalanced bridge?

The unbalanced Wheatstone Bridge can be solved by the use of Kirchhoff’s Current Law and Voltage Law.


Related Questions

  1. Meter Bridge or Slide Wire Bridge is a practical form of?
  2. Why Carey Foster Bridge Is So Sensitive?
  3. Can you find very high resistance accurately with the help of a Metre bridge?
  4. Does Meter bridge work on the principle of?
  5. What Is Null Voltage?

Read More:

CBSE CLASS XII Related Questions

  • 1.

    A rectangular loop of size 5 cm $\times$ 8 cm is lying in the $x$-$y$ plane in a uniform magnetic field $\vec{B} = (2.0\ \text{T})\hat{k}$. The total magnetic flux linked with the loop is:

      • 80 Wb
      • 16 Wb
      • \(8 \times 10^{-2}\) Wb
      • \(8 \times 10^{-3}\) Wb

    • 2.
      In a region, the electric potential varies as \(V = 10 - 50x\), where \(V\) is in volts and \(x\) is in meters. The electric field in the region is

        • \(10\ \text{N/C}\) along \(+x\)
        • \(10\ \text{N/C}\) along \(-x\)
        • \(50\ \text{N/C}\) along \(+x\)
        • \(50\ \text{N/C}\) along \(-x\)

      • 3.

        A circular coil of 100 turns and radius $\left(\frac{10}{\sqrt{\pi}}\right)$ cm carrying current of $5.0\,\text{A}$ is suspended vertically in a uniform horizontal magnetic field of $2.0\,\text{T}$. The field makes an angle $30^\circ$ with the normal to the coil. Calculate:

        (I) the magnetic dipole moment of the coil, and

        (II) the magnitude of the counter torque that must be applied to prevent the coil from turning.


          • 4.

            A magnet held vertically, with its north pole down, is dropped along the axis of a closed solenoid placed vertically on a table. If the observer looks down from the top,

              • the induced current will flow in the anticlockwise direction.
              • the induced current will flow in the clockwise direction.
              • no induced current will flow in the solenoid.
              • the magnet will fall with a constant velocity.

            • 5.
              The resistance of a metal wire at \(20^\circ\text{C}\) is \(1.05\,\Omega\) and at \(100^\circ\text{C}\) is \(1.38\,\Omega\). Determine the temperature coefficient of resistivity of this metal.


                • 6.
                  A wire of length \(L\) is bent round into (i) a square coil having \(N\) turns and (ii) a circular coil having \(N\) turns. The coil in both cases is free to turn about a vertical axis coinciding with the plane of the coil, in a uniform, horizontal magnetic field and carry the same currents. Find the ratio of the maximum value of the torque acting on the square coil to that on the circular coil.

                    CBSE CLASS XII Previous Year Papers

                    Comments


                    No Comments To Show