Ask & Answer: India's Largest Education Community

As per the historical data of the university's alumni, most of the Seoul National University graduates get placed in industries such as:

Banaras Hindu University offers a comprehensive library of courses in diverse disciplines. One of the popular programs at BHU is MBA, which is offered in 3 distinct specializations: MBA Program, MBA International Business, and MBA Agri Business. The fees structure for the 3 courses is tabulated below:

Apart from this, students have the choice of checking out the plenty of scholarship and fee waiver schemes being operated by BHU.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Explanation- for a charge particle to move in circular path

Mv²/r = qvB

v/r=w= bq/m

w= v/r = $\frac{L{T}^{-1}}{L}$ = T-1

This is a Multiple Choice Questions as classified in NCERT Exemplar

Explanation- force on charge particle due to both electric and magnetic field . now if electric force and magnetic field is zero then electric field and magnetic field is also zero.

Magnetic field is only responsible for constant velocity of charge particle if B=0 then E =0 if B is not equal to zero then electric field is also not equal to zero

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer- (b, c, d)

Explanation- magnetic forces on both the particles cause equal acceleration because they both have equal velocity

Also they both gain or loose energy because direction of force in both cases is opposite.

And there is no change in center of mass of particles so it is determined by B alone.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer- (b, c)

Explanation- if current is in opposite sense the? Bdl = 0, also there exist a point where b and dl is perpendicular.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer- (b, d)

Explanation- F=IlB, the direction of force is given by fleming's left hand rule and F is perpendicular to the direction of magnetic field. So work done is zero.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer – (a)

Explanation- gyro magnetic ratio does not depend upon which electron is rotating.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer. (d)

Explanation- W=MBcos $\theta$ , as the loop make 30 degree angle but angle made by axis of the loop with the direction of magnetic field, therefore work done is zero.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer – (a)

Explanation – when a charge particle enter in cyclotron it will always accelerated with the help of oscillating electric field. But it will move with the same speed with the help of magnetic field.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer- (d)

Explanation- when electron move in the direction of velocity along the axis of current then angle is 180 which makes force according to the relation F=qvbsin $?$ . so electron will continue move with uniform velocity along axis of solenoid.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer- (a)

Explanation-  magnetic moment, M = niA, when we decrease the radius by half its area is decrease by ¼ so the magnetic moment also.so magnetic moment diminishes.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer – (a)

Explanation- in biot savarts law magnetic field is perpendicular to v

When it comes to the customization of the BTech in Robotics Engineering syllabus, the core subjects leave little to no scope for customization, as they are compulsory for you to study in each semester because they provide foundational knowledge of the field of robotics and automation. Talking about the specialised electives, there is some room for customization, as you can choose the subjects based on your interests and understanding - the ones that are easy for you to understand, are scoring, have industrial demand, and are fun to explore.

Recommended Link: Robotics Engineering Subjects

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer – (d)

Explanation- it is determined by its pitch

Pitch = $\frac{2\pi mvcos\theta }{Bq}$ = constant

So charge by mass ratio is also constant

This is a Short Answer Type Questions as classified in NCERT Exemplar

Explanation- magnetic field produced by a long straight current carrying wire is

B= $\frac{{\mu }_{0}I}{2\pi r}$ = $\frac{{\mu }_{0}I}{2\pi h}$ , for h height distance

Magnetic force on small conductor is F= ilBsin $\theta$ = ilB

Also force, F =mg = $\frac{{\mu }_0{I}^2}{2\pi r}$ l

h= $\frac{4\pi \times {10}^{-7}\times 25\times 25\times 1}{2\pi \times 2.5\times {10}^{-3}\times 9.8}$ = 51 $\times$ 10^-4cm

This is a Short Answer Type Questions as classified in NCERT Exemplar

Explanation- applying expression in different situation

For i_G (G+R₁) = 2 , for 2V range

i_G (G+R₁+R₂) = 20 , for 20V range

i_G (G+R₁+R₂+R₃) = 2 , for 200V range

on solving we get R₁= 1990ohm, R₂= 18kohm, R₃= 180k ohm