RESISTANCE IN SERIES

Combination OF Resistance || Series & Parallel Combination || Wheatstone Bridge

An inductance and a resistance are connected in series with an AC potential . In this circuit

Questions|Combination Of Resistance|Series Combination Of Resistance |Parallel Combination Of Resistance|Questions|Quiz

Resistance |Series Combination Of Resistance|Parallel Combination Of Resistance|Current Divider Rule|Questions

A microammeter has a resistance of 100W and a full scale range of 50 µA. It can be used as a voltmeter or a higher range ammeter provided a resistance is added to it. Pick the correct range and resistance combination(s). (1) 10V range with 200 kW resistance in series. (2) 50V range with 10 kW resistance in series. (3) 5 mA range with 1W resistance in parallel. (4) 10 mA range with 1 kW resistance in parallel.

The resistance of the series combination of two resistances is S. When they are joined in parallel the total resistance is P. If S= nP then the minimum possible value of n is

The equivalent resistance of series combination of four equal resistors is S. If they are joined in parallel, the total resistance is P. The relation between S and P is given by S = nP. Then the minimum possible value of n is

The resistance of the four arms of a Wheatstone bridge are P= 10Omega , Q = 100Omega , R= 40Omega and S =10Omega . What resistance in series or parallel with the last one will be required to obtain no deflection in the galvanometer?

A galvanometer gives full scale deflection when the current passed through it is 3 mA. Its resistance is 100 Omega with connecting additional resistance in series, then it can be used as voltmeter of range

A galvanometer of resistance 500 Omega gives a full scale deflection, for a current of 20mA . Even without using a high resistance in series, it can be used as a voltmeter. The range of the voltmetr will be