On a smooth inclined plane at 30 degrees with the horizontal , a thin current carrying metallic rod is placed parallel to the horizontal groundc.The plane is located in a uniform magnetic field of 0.15T in the vertical direction . For what value of current can the rod remain stationery? The mass per unit length of the rod is 0.03kg/m

Answers (1)
S safeer

F upward = Bi L cos 30 = BiL * sqrt (3) / 2

 

F downward the gravity = mg sin 30 = mg/2

 

for equilibrium

 

F upward   = F downward

 

i = mg / BL * sqrt (3)

 

i = 0.03 * 10 / 0.15 * 1 * 1.732

 

i = 1.15 A

Preparation Products

Knockout NEET May 2021 (One Month)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 14000/- ₹ 6999/-
Buy Now
Knockout NEET May 2021

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 22999/- ₹ 14999/-
Buy Now
Test Series NEET May 2021

Unlimited Chapter Wise Tests, Unlimited Subject Wise Tests, Unlimited Full Mock Tests, Get Personalized Performance Analysis Report,.

₹ 6999/- ₹ 4999/-
Buy Now
Rank Booster NEET 2021

Booster and Kadha Video Lectures, Unlimited Full Mock Test, Adaptive Time Table, 24x7 Doubt Chat Support,.

₹ 13999/- ₹ 9999/-
Buy Now
Knockout NEET May 2022

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 34999/- ₹ 24999/-
Buy Now
Boost your Preparation for NEET 2021 with Personlized Coaching
 
Exams
Articles
Questions