AIEEE 2004 (Physics) Mock Test

A $6\text{V}$ battery is connected to a network of resistors. If the equivalent resistance of the network is $1.5\Omega$, the total current supplied by the battery is:

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:

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the length and radii of the wires are in the ratio of $4/3$ and $2/3$, then the ratio of the currents passing through the wires will be:

In a metre bridge experiment, a null point is obtained at $20\text{cm}$ from one end of the wire when resistance $X$ is balanced against another resistance $Y$. If $X<Y$, then where will be the new position of the null point from the same end, if one decides to balance a resistance of $4X$ against $Y$?

Thermistors are usually made of: