The current $i$ in a coil varies with time as shown in the figure. The variation of induced $emf$ with time would be

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    Option A
  • B
    Option B
  • C
    Option C
  • D
    Option D

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Similar Questions

The current $i$ in a coil varies with time as shown in the figure. The variation of induced $emf$ with time would be:

The figure shown has two coils of wires placed in close proximity. The current in primary coil $P$ is made to vary with time as shown in the graph. Which of the following graphs best represents the variation of the emf induced in the secondary coil $S$?

$A$ bar magnet falls from rest under gravity through the centre of a horizontal ring of conducting wire as shown in figure. Which of the following graph best represents the speed $(v)$ vs. time $(t)$ graph of the bar magnet?

$(a)$ $A$ closed loop is held stationary in the magnetic field between the north and south poles of two permanent magnets held fixed. Can we hope to generate current in the loop by using very strong magnets?
$(b)$ $A$ closed loop moves normal to the constant electric field between the plates of a large capacitor. Is a current induced in the loop
$\quad (i)$ when it is wholly inside the region between the capacitor plates
$\quad (ii)$ when it is partially outside the plates of the capacitor? The electric field is normal to the plane of the loop.
$(c)$ $A$ rectangular loop and a circular loop are moving out of a uniform magnetic field region to a field-free region with a constant velocity $v$. In which loop do you expect the induced emf to be constant during the passage out of the field region? The field is normal to the loops.
$(d)$ Predict the polarity of the capacitor in the situation described by the figure.

Match the List-$I$ with List-$II$:
List-$I$List-$II$
$A$. Magnetic induction$I$. $MLT^{-2}A^{-2}$
$B$. Magnetic flux$II$. $ML^2T^{-2}A^{-2}$
$C$. Magnetic permeability$III$. $ML^0T^{-2}A^{-1}$
$D$. Self inductance$IV$. $ML^2T^{-2}A^{-1}$

Choose the correct answer from the options given below:

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