EASY

JEE Main/Advance

IMPORTANT

Earn 100

A long solenoid is fabricated by closely winding a wire of diameter $0.5 mm$ over a cylindrical nonmagnetic frame so that the successive turns nearly touch each other. What would be the magnetic field $B$ at the centre of the solenoid if it carries a current of $2.5 A$ ?

50% studentsanswered this correctly

Important Questions on Magnetic Effect of Current

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 81

A current $I$ flows along the length of an infinitely long, straight and thin-walled pipe. Then

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 82

A circular loop is kept in that vertical plane which contains the north-south direction. It carries a current that is towards south at the topmost point. Let

A

be a point on axis of the circle to the east of it and

B

a point on this axis to the west of it. The magnetic field due to the loop

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 83

A long, thick straight conductor of radius

R

carries current

I

uniformly distributed in its cross section area. The ratio of energy density of the magnetic field at distance

R / 2

from surface inside the conductor and outside the conductor is :

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 84

Which of the following particles will experience minimum magnetic force (magnitude) when projected with the same velocity perpendicular to a magnetic field?

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 85

Electric current

i

enters and leaves a square loop made of homogeneous wire of uniform cross-section through diagonally opposite corners. A charge particle

q

moving along the axis of the square loop passes through centre at speed

υ

. The magnetic force acting on the particle when it passes through the centre has a magnitude

HARD

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 86

Two particles

X

and

Y

having equal charges, after being accelerated through the same potential difference enter a region of uniform magnetic field and describes circular paths of radii

r_{1}

and

r_{2}

respectively. The ratio of the mass of

X

and

Y

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 87

A negative charged particle falling freely under gravity enters a region having uniform horizontal magnetic field pointing towards north. The particle will be deflected towards

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Physics>Chapter 25 - Magnetic Effect of Current>Exercise - 1>Q 88

A proton is moved along a magnetic field line. The magnetic force on the particle is

A long solenoid is fabricated by closely winding a wire of diameter 0.5 mm over a cylindrical nonmagnetic frame so that the successive turns nearly touch each other. What would be the magnetic field B at the centre of the solenoid if it carries a current of 2.5 A ?

Important Questions on Magnetic Effect of Current

Learn and Prepare for any exam you want !

A long solenoid is fabricated by closely winding a wire of diameter $0.5 mm$ over a cylindrical nonmagnetic frame so that the successive turns nearly touch each other. What would be the magnetic field $B$ at the centre of the solenoid if it carries a current of $2.5 A$ ?