Current Electri...

If a man has five resistors each of value $$\dfrac { 1 }{ 5 } \Omega $$ then is the maximum resistance he can obtain  by connecting them, is :

The length of a wire of a potentiometer is 100 cm, and the emf of its standard cell is $$E$$ volt. It is employed to measure the emf of a battery whose internal resistance is $$0.5\Omega$$. If the balance point is obtained at $$l=30$$ cm from the positive end, the emf of the battery is

The arm PQ can revolve with uniform speed continuously about P round the circular uniform potentiometer track XYZ. The voltage between RS will vary with respect to time :

There is a fixed potential difference between the two ends of a potentiometer. Two cells are connected in series in such a way that in one arrangement they help each other where as in the second arrangement they oppose each other. The balance point for these two combinations is obtained at 120 cm and 60 cm length respectively. The ratio of the emf of the cell is:

A resistance of $$0.01\ \Omega$$ is connected in parallel with a resistance of $$1\ k\Omega$$ The resistance of the combination will be:

Three equal resistors connected in series across a source of e.m.f. together dissipate 10 watt of power. What would be the power dissipated if the same resistors are connected in parallel across the same source of e.m.f.? 

Three resistors each of $$10 \Omega$$ are connected in series to a battery of potential difference 150 v. The current flowing through it is ..... A.

The colour code of a resistor is brown, black and brown. Then the value of resistance is .....

The given figure shows a network of currents. The current $$i$$ is

Which of the following graphs represents a ohmic conductor?