The magnetic field in a moving coil galvanometer is made radial by surrounding the coil with a cylindrical magnetic core. When current flows through the coil, it creates a magnetic field perpendicular to the coil. This magnetic field interacts with the radial magnetic field of the core, causing a torque on the coil that deflects the pointer.
A moving iron galvanometer is a type of electrical measuring instrument that uses a coil of wire and a movable iron needle to detect and measure electric currents. When current flows through the coil, it creates a magnetic field that moves the iron needle, which indicates the strength and direction of the current.
A tangent galvanometer is called so because it uses the tangent of the angle through which a magnetic needle is deflected to measure electric current. The horizontal component of the Earth’s magnetic field and a coil carrying current creates a magnetic field that deflects the needle, making it tangent to the circle of the coil.
A cylindrical core of soft iron is used in a moving coil galvanometer because soft iron has high magnetic permeability, meaning it enhances the magnetic field produced by the coil. This helps increase the sensitivity and responsiveness of the galvanometer to small currents passing through the coil.
A radial magnetic field is often used in applications where the magnetic field needs to be concentrated in a particular area, such as in electric motors or generators. By having a radial magnetic field, the magnetic flux can be directed efficiently through the device and produce the desired output. Additionally, a radial magnetic field can minimize energy losses and improve the overall performance of the device.
It transforms into a magnetic field.
1. to intensify the magnetic field by reducing the length of airgap across which the magnetic flux has to pass; 2. to give a radial magnetic flux of uniform density, thereby enabling the scale to be uniformly divided.
A moving iron galvanometer is a type of electrical measuring instrument that uses a coil of wire and a movable iron needle to detect and measure electric currents. When current flows through the coil, it creates a magnetic field that moves the iron needle, which indicates the strength and direction of the current.
To produce a constant torque on the coil
A tangent galvanometer is called so because it uses the tangent of the angle through which a magnetic needle is deflected to measure electric current. The horizontal component of the Earth’s magnetic field and a coil carrying current creates a magnetic field that deflects the needle, making it tangent to the circle of the coil.
an electric current can produce a magnetic field. then,magnetic field within the core of wire will induced the voltage. so magnetic will produce from current at the galvanometer and magnet was far from galvanometer and it induces the voltage
It transforms into a magnetic field.
A cylindrical core of soft iron is used in a moving coil galvanometer because soft iron has high magnetic permeability, meaning it enhances the magnetic field produced by the coil. This helps increase the sensitivity and responsiveness of the galvanometer to small currents passing through the coil.
A radial magnetic field is often used in applications where the magnetic field needs to be concentrated in a particular area, such as in electric motors or generators. By having a radial magnetic field, the magnetic flux can be directed efficiently through the device and produce the desired output. Additionally, a radial magnetic field can minimize energy losses and improve the overall performance of the device.
It transforms into a magnetic field.
A galvanometer consists of a coil of wire suspended in a magnetic field. When an electric current passes through the coil, it generates a magnetic field that interacts with the external magnetic field, causing the coil to move. The amount of deflection is proportional to the current strength, allowing the galvanometer to indicate the current passing through it.
The device that turns a needle in a galvanometer is called a coil. The coil generates a magnetic field when current flows through it, which interacts with the magnetic field produced by the permanent magnet in the galvanometer to cause the needle to deflect.
The term galvanometer is used to refer to a meter which can measure small currents, usually in the mA (10-3A) or mA (10-6A) range. When a soft iron core is used, the magnetic field lines tend to crowd through the core. It is because soft iron core is ferromagnetic in nature. As a result, the strength of the magnetic field due to the field magnet increases, which in turn increases the sensitivity of the galvanometer.