Considering `theta=pi//2` as the zero-energy position of a current loop of magnetic moment m placed in a magnetic field of strength B,find the minimum

Considering `theta=pi//2` as the zero-energy position of a current loop of magnetic moment m placed in a magnetic field of strength B,find the minimum potential energy. In what position is the potential energy minimum? Is this an equilibrium position ? What will be the work done in turning it through `alpha` from this position ? Examine whether you get the dame position for equilibrium and same value for work if `theta=0` is taken as the zero-energy position.

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - `-mB` when `theta=0` , i.e. , coil phane is perpendicular to B yes, because `tau=0` in this position ; `mB(1-"coa"alpha)`

5 views Answered 2023-02-05 15:29

Related Questions

If `I_(1)=int_(0)^(1)(dx)/(e^(x)(1+x))` and `I_(2)=int_(0)^(pi//4)(e^(tan^(7)theta)sintheta)/((2-tan^(2)theta)cos^(3)theta d theta`,then find the valu

2 Answers 6 Views

Let `A=[{:(,sin theta,1sqrt2),(,-1//sqrt2,cos theta),(,cos theta,tan theta):}]& B=[{:(,1sqrt2,sin theta),(,cos theta,cos theta),(,cos theta,-1):}]`. F

2 Answers 4 Views

Prove the orthogonal matrices of order two are of the form `[(cos theta,-sin theta),(sin theta,cos theta)]` or `[(cos theta,sin theta),(sin theta,-cos

2 Answers 7 Views

If `theta-phi=pi/2,` prove that, `[(cos^2 theta,cos theta sin theta),(cos theta sin theta,sin^2 theta)] [(cos^2 phi,cos phi sin phi),(cos phi sin phi,

2 Answers 5 Views

If `A(theta)=[(sin theta, i cos theta),(i cos theta, sin theta)]`, then which of the following is not true ?

2 Answers 7 Views

सरल कीजिए, ` cos theta [{:( cos theta,, sin theta ), (-sin theta,, cos theta ):}] + sin theta [ {:(sin theta ,, - cos theta ), (cos theta ,, sin theta

2 Answers 4 Views

iii) A circular loop of area \( \pi cm ^{2} \) and carrying current \( 10 \mu A \) is placed in magnetic field \( B \) with its plane perpendicular to \( B \). If \( B=\pi mT \), the magnitude of torque exerted on this loop is a) zero b) \( 10^{-11} Nm \) c) \( 10^{-7} Nm \) d) \( 10^{-1} Nm \)

2 Answers 4 Views

A current loop, carrying a current of 5.0 A, is in the shape of a right triangle with sides 30,40, and 50 cm. The loop is in a uniform magnetic field

2 Answers 4 Views

A circular loop of radius 10 cm carries a current of 15A. At its center is placed a small loop of radius 1cm with 50 turns and a current of 1A. A) wha

2 Answers 4 Views

A circular loop of 50 turns and an area of 20 `cm^(2)` is placed in a magnetic field of 0.2 T. Calcualte the torque required to deflect the loop throu

2 Answers 4 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)