[" Calculate the combined resistance in eact "],[500Omega],[hline]

Calculate the combined resistance in each case:

The combined resistance of a galvanometer of resistance 500Omega and its shunt is 21Omega . Calculate the value of shunt.

The combined resistance of a galvanometer of resistance 500 Omega and its shunt is 21 Omega Calculated the value of shunt.

Four resistors of resistances 5 Omega each are connected in parallel. Calculate the effective resistance of the combination.

A set of three coils having resistances 10 Omega , 12 Omega and 15 Omega are connected in parallel. This combination is connected in series with series combination of three coils of the same resistances. Calculate the total resistance and current through the circuit, if a battery of emf 4.1 Volt is used for drawing current.

The combinant resistance of a galvanometer of resistance 500 Omega and its shunt is 25 Omega . What is the value of the shunt?

Calculate the ratio of equivalent resistances of series and parallel combination of 2, 3, 6 Omega resistances.