AIEEE 2005 Physics Question Paper Mock Test

A nuclear transformation is denoted by $X(n,\alpha ){}_3^7\text{Li}$. Which of the following is the nucleus of element $X$?

A moving coil galvanometer has $150$ equal divisions. Its current sensitivity is $10$ divisions per milliampere and voltage sensitivity is $2$ divisions per millivolt. In order that each division reads $1\text{ volt}$, the resistance in ohms needed to be connected in series with the coil will be:

Two voltameters one of copper and another of silver, are joined in parallel. When a total charge $q$ flows through the voltameters, equal amount of metals are deposited. If the electrochemical equivalents of copper and silver are $z_1$ and $z_2$ respectively the charge which flows through the silver voltameter is:

In the circuit, the galvanometer $G$ shows zero deflection. If the batteries $A$ and $B$ have negligible internal resistance, the value of the resistor $R$ will be:

Two sources of equal emf are connected to an external resistance $R$. The internal resistance of the two sources are $R_1$ and $R_2$ ($R_2>R_1$). If the potential difference across the source having internal resistance $R_2$ is zero, then: