What are the advantagges of using soft iron as a core, instead of steel, in the coils of galvanometers?

Why small soft iron cylinder is placed at the axis of the coil in galvanometer ?

What is the value of resistance to double the value of number of turns of coil for galvanometer ? Why?

What are difficulties arised by using water in a barometer instead of mercury ?

Why soft iron core is used in transformer?

Which one of the following modifications may increase the senstivity of moving coil galvanometer? 1^(st) Way : By using spring of smaller torsion constant. 2^(nd) Way : By using a smaller coil 3^(rd) Way : By using a stronger magnet 4^(th) Way: By using a coil having fewer number of turns.

What is electromagnetic induction ? A coil of insulated copper wire is connected to a galvanometer. What will happen in the galvanometer if a strong bar magnet is . .. (1) pushed into the coil ? (2) withdrawn from inside the coil ? (3) held stationary inside the coil ?

What is reason behind no damage in wire of coil of galvanometer after connecting shunt.

The bola is a weapon used by gauchos for entangling animals. It consists of three balls of stone or iron connected by things. The gaucho whirls the bola in the air and hurls it at the animals. What can we say about its motion?

Your father decided to fit CNG kit in his petrol car. Your mother is a working woman. Your father has managed their working time in such a way that he took your mother with him. Your school is just 3 km away from your home. Your father also insists you to use bicycle instead of fuel using vehicle for going to school. What value is reflected in the above family ?