Four
capacitors are in parallel. Their values are 36.3 `mu_`F, 3.85 `mu_`F, 34.002 `mu_`F and 850 `mu_`F with an uncertainty of digit in the last place. The total
capacitance in significant figures is

A meter having
0-1000 `mu_`A range and 1000 `Omega` resistance is required to be changed to 0-100
mA meter. The value of shunt resistance is about

In a ballistic galvanometer, a charge of 100 `mu_`C gives a first swing of `25^circ`. The charge required to cause first swing of `50^circ` is

The term 'Poisson's ratio' is connected with

While calibrating an ammeter by a dc potentiometer it is necessary to use a standard resistance.