A soft iron core is used in galvanometer because the magnetic lines of force can be attracted by the soft iron core. This attraction of magnetic lines of force increases the magnetic field which increases the sensitivity of galvanometer. Why soft iron is used in moving arm in motor? insteadRead More →
A galvanometer is an instrument for detecting and measuring high-speed electric current. One of the most common uses of a galvanometer is for analog measuring instruments, otherwise known as an ammeter, which is used to measure the flow of an electrical charge through an electrical circuit. How does a galvanometerRead More →
The suspension wire of phosphor bronze alloy is preferred in moving coil galvanometer because it has several advantages: (i) Its restoring torque per unit twist is small. … (ii) It has great tensile strength so that even if it is thin, it will not break under the weight of theRead More →