# A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 Weber/m2. The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of 30° with the direction of the field, the torque required to keep the coil in stable equilibrium will be : Option 1) 0.20 Nm Option 2) 0.24 Nm Option 3) 0.12 Nm Option 4) 0.15 Nm

As learnt in concept

Deflecting torque -

$T_{def}=NBiA\sin \theta$

$\theta =90^{\circ}$

$T_{def}=NBiA$

- wherein

Deflecting torque always has the maximum value

T=NIASin$\theta=SO\times 20\times 0.12\times 0.2\times\frac{\sqrt{3}}{2}$

T=0.20 N.mt

Option 1)

0.20 Nm

Option 2)

0.24 Nm

Option 3)

0.12 Nm

Option 4)

0.15 Nm

### Preparation Products

##### Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
##### Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
##### Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
##### Test Series NEET May 2021

Take chapter-wise, subject-wise and Complete syllabus mock tests and get in depth analysis of your test..

₹ 6999/- ₹ 4999/-