List of top Questions asked in BHU UET- 2009

Black water fever is caused by

A toroidal solenoid with an air core has an average radius of $15 \,cm,$ area of cross-section $12\,cm^2$ and $1200$ turns. Ignoring the field variation across the cross-section of the toroid, the self-inductance of the toroid is

The given four terminal network is part of a larger circuit. The points $A, B, C$ are at the same potential. The potential difference between any one of $A, B $ or $C$ and $D$ is $40\, V$. The potential difference between $A$ and $O$ is