State the uses of resistance connected in series with the galvanometer.

If resistors are connected in series.

When a resistance of 100Omega is connected in series with a galvanometeer of resistance R, its range is V. To double its range, a resistance of 1000Omega is connected in series. Find R.

A galvanometer has a resistance of 16Omega . It shows full scale deflection when a current of 20mA is passed through it. The only shunt resistance available is 0.06W which is not appropriate to convert galvanometer into ammeters. How much resistance should be connected in series with the coil of galvanometer so that the range of ammeter is 8A?

A galvanometer has a resistance of 16 Omega and gives a full scale deflection, when a current of 20 mA is passed through it. The only shunt resistance available is 0.04 Omega which is not appropriate to convert galvanometer into an ammeter. How much resistance should be connected in series with coil of galvanometer so that the range of ammeter is 10 A?

Derive the expression for resistances connected in series.

Choose correct alternative. The number of equal resistance connected in series have effective resistance of 32 Omega . When the same resistances are connected in parallel then effective resistance is 2 Omega . The number of resistances are A. 4 B. 8 C. 5 D. 10

Two unknown resistances are connected in two gaps of a meter-bridge. The null point is obtained at 40 cm from left end. A 30Omega resistance is connected in series with the smaller of the two resistances, the null point shifts by 20 cm to the right end. The value of smaller resistance in Omega is

A range of galvanometer is V, when 50Omega resistance is connected in series. Its range gets doubled when 500Omega resistance is connected in series. Galvanometer resistance is

Two equal resistances are introduced in two gaps of a metre bridge.Find the shift in the null point if an equal resistance is connected in series with resistance in left gap .

Two resistances are connected in the two gaps of a meter bridge. The balance point is 20 cm from the zero end. When a resistance 15 Omega is connected in series with the smaller of two resistance, the null point+ shifts to 40 cm . The smaller of the two resistance has the value.