Moving Coil Galvanometer — Prelims Questions

A Moving Coil Galvanometer has a resistance of $50\,\Omega$ and gives a full-scale deflection for a current of $10\,\text{mA}$. To convert it into an ammeter of range $0-1\,\text{A}$, the shunt resistance required is:

A galvanometer has a resistance of $100\,\Omega$ and shows full-scale deflection for a current of $50\,\mu\text{A}$. How would you convert it into a voltmeter to measure up to $10\,\text{V}$?

Which of the following factors does NOT increase the current sensitivity of a Moving Coil Galvanometer?

What is the primary function of the soft iron core in a Moving Coil Galvanometer?

A galvanometer coil has $N$ turns, area $A$, and is placed in a magnetic field $B$. If the torsional constant of the suspension wire is $k$, what is the voltage sensitivity ($V_s$) of the galvanometer?

A galvanometer has a current sensitivity of $5\,\text{div/mA}$ and a voltage sensitivity of $20\,\text{div/V}$. What is the resistance of the galvanometer coil?