Which curve may best represent the current deflection in a tangent galvanometer
$A$
$B$
$C$
$D$
(b)$i \propto \tan \theta $
Assertion : Magnetic Resonance Imaging $(MRI)$ is a useful diagnostic tool for producing images of various parts of human body.
Reason : Protons of various tissues of the human body play a role in $(MRI)$.
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When $2 $ $amperes$ current is passed through a tangent galvanometer, it gives a deflection of $30^o$. For $60^o$ deflection, the current must be……..$amp$
Magnets $A$ and $B$ are geometrically similar but the magnetic moment of $A$ is twice that of $B$. If $T_1 $ and $T_2$ be the time periods of the oscillation when their like poles and unlike poles are kept together respectively, then $\frac{{{T_1}}}{{{T_2}}}$will be
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