Question

The direction of magnetic field at an arbitrary point is given as:-

1). tan∝ = sin∝/2cos∝

2). tan∝ = tanƟ/2

3). tan∝ = tanƟ

4). tan∝ = 2tanƟ

please answer me asap​

Answer 1

Answer:

Correct option is

B

centre

Let the two points be A(acosθ

1

,bsinθ

1

) and B(acosθ

2

,bsinθ

2

).

O (0,0) is origin.

Slope of OA=

acosθ

1

bsinθ

1

=

a

btanθ

1

Slope of OB=

acosθ

2

bsinθ

2

=

a

btanθ

2

Slope of OA× slope of OB=

a

2

b

2

tanθ

1

tanθ

2

=−1

ITS HELP YOU