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Wheatstone Bridge In 1845 by German physicist Gustav Kirchhoff described Kirchhoff’s circuit laws which are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits.As an application of these laws, consider the circuit shown below, which is called the Wheatstone bridge. This bridge consists of four resistors `R_1, R_2, R_3 and R_4`. Across one pair of diagonally opposite points (A and C in the figure) a source is connected.This (i.e., AC) is called the battery arm. Between the other two vertices, B and Z), a galvanometer G (which

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Wheatstone Bridge In 1845 by German physicist Gustav Kirchhoff described Kirchhoff’s circuit laws which are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits.As an application of these laws, consider the circuit shown below, which is called the Wheatstone bridge. This bridge consists of four resistors `R_1, R_2, R_3 and R_4`. Across one pair of diagonally opposite points (A and C in the figure) a source is connected.This (i.e., AC) is called the battery arm. Between the other two vertices, B and Z), a galvanometer G (which

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Wheatstone Bridge In 1845 by German physicist Gustav Kirchhoff described Kirchhoff’s circuit laws which are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits.As an application of these laws, consider the circuit shown below, which is called the Wheatstone bridge. This bridge consists of four resistors `R_1, R_2, R_3 and R_4`. Across one pair of diagonally opposite points (A and C in the figure) a source is connected.This (i.e., AC) is called the battery arm. Between the other two vertices, B and Z), a galvanometer G (which

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Wheatstone Bridge In 1845 by German physicist Gustav Kirchhoff described Kirchhoff’s circuit laws which are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits.As an application of these laws, consider the circuit shown below, which is called the Wheatstone bridge. This bridge consists of four resistors `R_1, R_2, R_3 and R_4`. Across one pair of diagonally opposite points (A and C in the figure) a source is connected.This (i.e., AC) is called the battery arm. Between the other two vertices, B and Z), a galvanometer G (which

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Biot-Savart’s law may be represented in vector form

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A circular coil of wire consisting of 100 turns, each of radius `8.0 cm` carries a current of `0.40 A`. What is the magnitude of the magnetic field B at the centre of the

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A current `I` flows through a long straight conductor which is bent into a circular loop of radius R in the middle as shown in the figure.The magnitude of the net magnetic field at point `O` will

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A current of 10A is flowing from east to west in a long straight wire kept on a horizontal table. The magnetic field developed at a distance of 10 cm due north on the table

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Magnetic field due to a ring having `n` turns at a distance `x` on its axis is proportional to (if, `r` = radius of

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A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field B with the distance d from the centre of the conductor, is correctly represented by the

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The magnitude of the magnetic field inside a long solenoid is increased

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A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns/cm is halved, the new value of the magnetic field

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The variation of magnetic field with distance d from centre of current carrying solenoid is best represented

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Toroid

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A toroid having 200 turns carries a current of 1A. The average radius of the toroid is 10 cm. The magnetic field at any point in the open space inside the toroid

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Two toroids 1 and 2 have total number of turns 200 and 100 respectively with average radii 40 cm and 20 cm, respectively. If they carry same current `i`, the ratio of the magnetic fields along the two loops

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The current in the windings on a toroid is 2.0 A. There are 400 turns and the mean circumferential length is 40 cm. If the inside magnetic field is 1.0 T, the relative permeability is near

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Time period of a charged particle undergoing a circular motion in a uniform magnetic field is independent

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Which of the following diagram is correct for the direction of magnetic force on a charge moving in a uniform magnetic

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Two particles of masses `m_a & m_b` and same charge are projected in a perpendicular magnetic field. They travel along circular paths of radius `r_a and r_b` such that `r_a > r_b`. Then, which is

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