MHT CET2007PhysicsCapacitance
Tangent galvanometer measures
Options
- Acapacitance
- Bcurrent
- Cresistance
- Dpotential difference
Correct answer
B. current
Step-by-step solution
When a current is passed through the galvanometer coil, then a magnetic field B is produced at right angles to the plane of the coil, ie, at right angles to the horizontal component of earth's magnetic field H . Under the influence of two crossed magnetic fields B and H , the magnetic needle of galvanometerundergoes a deflection which is given by the tangent law. Using tangent law, we can find a relation I Which clearly indicates that tangent galvanometer is an instrument used for detection of electric current in a