A flat rectangular coil with $55$ turns, each one of dimension $12cm50cm,$ is oriented with its plane perpendicular to a uniform magnetic field. The field varies at constant rate from $0\mathrm{.}00$ T to $1\mathrm{.}8$ T in $75$ ms $.$ Calculate the induced emf and the induced current in the coil during this time if the resistance of the coil is $196.$

$($A$)$ Induced emf$=$ Unit Select an answer $$

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$($B$)$ Induced $I=$ Unit $q,$ Select an answer $vv$

Instead of varying the magnetic field, its direction is fliped in time $14$ ms while keeping its constant magnitude $1$ T $.$ Calculate the induced emf and the induced current in the coil during this time if the resistance of the coil is $76.$

$($C$)$ Induced emf $=$ Unit $$ Select an answer

$($D$)$ Induced $I=$ Unit Select an answer $$