1

JEE Main 2021 (Online) 27th July Morning Shift

Numerical

+4

-1

In a uniform magnetic field, the magnetic needle has a magnetic moment 9.85 $$\times$$ 10

^{$$-$$2}A/m^{2}and moment of inertia 5 $$\times$$ 10^{$$-$$6}kg m^{2}. If it performs 10 complete oscillations in 5 seconds then the magnitude of the magnetic field is _______________ mT. [Take $$\pi$$^{2}as 9.85]Your input ____

2

JEE Main 2021 (Online) 25th July Morning Shift

Numerical

+4

-1

The value of aluminium susceptibility is 2.2 $$\times$$ 10

^{$$-$$5}. The percentage increase in the magnetic field if space within a current carrying toroid is filled with aluminium is $${x \over {{{10}^4}}}$$. Then the value of x is _________________.Your input ____

Questions Asked from Magnetic Properties of Matter (Numerical)

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