TS EAMCET 2023 (Online) 13th May Evening Shift | Moving Charges and Magnetism Question 30 | Physics

A closely wound solenoid of 80 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 1.8 cm . If the current carried is 8 A , then the magnitude of the magnetic field inside the solenoid near its centre is approximately

$1.5 \times 10^{-2} \mathrm{~T}$

$2.5 \times 10^{-2} \mathrm{~T}$

$3.5 \times 10^{-2} \mathrm{~T}$

$4.5 \times 10^{-2} \mathrm{~T}$

TS EAMCET 2023 (Online) 13th May Morning Shift

MCQ (Single Correct Answer)

-0

A charge $q$ moves with a velocity $2 \mathrm{~ms}^{-1}$ along $X$-axis in a uniform magnetic field $\mathbf{B}=(2 \hat{\mathbf{i}}+2 \hat{\mathbf{j}}+3 \hat{\mathbf{k}})$ T, then charge will experience a force

In YZ-plane

Along $-Y$ axis

Along $+Z$ axis

Along $-Z$ axis

TS EAMCET 2023 (Online) 12th May Evening Shift

MCQ (Single Correct Answer)

-0

The magnetic field at a perpendicular distance of one metre from a wire carrying current of 1 A is

$2 \times 10^{-7} \mathrm{~T}$

$2 \times 10^{-8} \mathrm{~T}$

$2 \times 10^{-6} \mathrm{~T}$

$2 \times 10^{-9} \mathrm{~T}$

TS EAMCET 2023 (Online) 12th May Evening Shift

MCQ (Single Correct Answer)

-0

A circular coil of area $2 \mathrm{~cm}^2$ has 1000 turns. If the current through the coil is 1 A , then its magnetic moment is

$4 \mathrm{~A}-\mathrm{m}^2$

$0.2 \mathrm{~A}-\mathrm{m}^2$

$0.4 \mathrm{~A}-\mathrm{m}^2$

$2 \mathrm{~A}-\mathrm{m}^2$

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