Electricity Tes...

Which of the following I-V graph represents ohmic conductors?

$$n$$ resistors each of resistance $$R$$ first combine to give maximum effective resistance and then combine to given minimum effective resistance. The ratio of the maximum to minimum resistance is:

Ravi connected three bulbs with the cells and a switch as shown. When switch is moved to ON position.

You have been provided with four $$400$$$$\  \Omega$$ resistors each. The number of ways in which these can be combined to have different equivalent resistances is

Two coils have a combined resistance of $$12 \Omega$$, when combined series and $$5/3 \Omega$$, when connected in parallel. Their respective resistances are:

Match the Column I with Column II.

A metal plate can be heated by

In parallel combination of n cells, we obtain:

A wire of resistance $$12\: ohm/meter\: $$is bent to form a complete circle of radius $$10cm$$. The resistance between its two diametrically opposite points, A and B as shown in the figure is?

An infinite ladder network of resistances is constructed with $$1\Omega$$ and $$2\Omega$$ resistance as shown in figure. The $$6$$V battery between A and B has negligible internal resistance. The equivalent resistance between A and B is?