Which one of the following is not an electromechanical instrument ?

Related Mcqs:

Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called____________________?

A. magnetic flux B. magnetic field intensity C. magnetic induction D. self inductance...

A sensitive galvanometer gives full-scale deflection with 100 mV. If the resistance of the galvanometer is 50? the maximum current that can flow through safely is__________________?

A. 2.0 mA B. 20 mA C. 200 mA D. 0.2 mA...

A galvanometer basically is an instrument used to ____________________?

A. detect current in a circuit B. measure current flowing through a circuit C. measure voltage across a circuit D. measure potential difference between two points in a circuit...

An ammeter measures the total current flowing through a circuit when it is connected__________________?

A. in series with the circuit B. in parallel with circuit C. in series with any of the parallel resistances in the circuit D. in parallel with any of the series resistances in the circuit...

The effective way to increase the sensitivity of a moving coil galvanometer is to___________________?

A. use a very long and fine suspension B. use a coil of very large area C. use a coil with very large number of turns D. use a very strong magnetic field...