AP EAPCET 2024 - 20th May Morning Shift | Moving Charges and Magnetism Question 13 | Physics

In hydrogen atom an electron is making $6.6 \times 10^{15} \mathrm{rev} / \mathrm{s}$ around the nucleus of radius $0.47 $$\mathop A\limits^o $. The magnetic field induction produced at the centre of the orbit is nearly.

$0.14 \mathrm{~Wb} \mathrm{~m}^{-2}$

$1.4 \mathrm{~Wb} \mathrm{~m}^{-2}$

$14 \mathrm{~Wb} \mathrm{~m}^{-2}$

$140 \mathrm{~Wb} \mathrm{~m}^{-2}$

AP EAPCET 2024 - 20th May Morning Shift

MCQ (Single Correct Answer)

-0

When two coaxial coils having same current in same direction are brought to each other, then the value of current in both the coils

increases

decreases

remains same

increases in one coil and decreases in other coil

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

-0

A wire shaped in a regular hexagon of side 2 cm carries a current of 4 A . The magnetic field at the centre of hexagon is AP EAPCET 2024 - 19th May Evening Shift Physics - Moving Charges and Magnetism Question 17 English

AP EAPCET 2024 - 19th May Evening Shift Physics - Moving Charges and Magnetism Question 17 English

$4 \sqrt{3} \times 10^{-5} \mathrm{~T}$

$8 \sqrt{3} \times 10^{-5} \mathrm{~T}$

$\sqrt{3} \times 10^{-5} \mathrm{~T}$

$6 \sqrt{3} \times 10^{-5} \mathrm{~T}$

AP EAPCET 2024 - 19th May Evening Shift

MCQ (Single Correct Answer)

-0

A tightly wound coil of 200 turns and of radius 20 cm carrying current 5 A . Magnetic field at the centre of the coil is

$3.14 \times 10^{-3} \mathrm{~T}$

$3.14 \times 10^{-2} \mathrm{~T}$

$628 \times 10^{-4} \mathrm{~T}$

$628 \times 10^{-3} \mathrm{~T}$

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