Two coaxial solenoids of different radii carry current I in the same direction. Let F 1 → be the magnetic force on the inner solenoid due to the outer one and F 2 → be the magnetic force on the outer solenoid due to the inner one. Then:

F 1 → is radially outwards and F 2 → = 0

F 1 → is radially inwards and F 2 → is radially outwards

F 1 → is radially inwards and F 2 → = 0

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A proton projected in a magnetic field of $0.04 T$ travels along a helical path of radius $5.0 cm$ and pitch $20 cm .$ Find the components of the velocity of the proton along and perpendicular to the magnetic field. Take the mass of the proton $= 1.6 \times 10^{- 27} kg .$

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Important Questions on Magnetic Effect of Current

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 9

A particle moves in a circle of radius

1.0 cm

under the action of a magnetic field of

0.40 T .

An electric field of

200 V m^{- 1}

makes the path straight. Find the charge/mass ratio of the particle.

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 10

A proton goes undeflected in a crossed electric and magnetic field (the fields are perpendicular to each other) at a speed of

10^{5} m s^{- 1} .

Velocity is perpendicular to both the fields. When the electric field is switched off, the proton moves along a circle of radius

2 cm .

Find the magnitudes of the electric and the magnetic fields. Take the mass of the proton

= 1.6 \times 10^{- 27} kg

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 11

A particle having mass

m

and charge

q

is released from the origin in a region in which electric field and magnetic field are given by

\vec{B} = + B_{0} \hat{j}

and

\vec{E} = + E_{0} \hat{i} .

Find the speed of the particle as a function of its

X

coordinate.

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 12

Consider a

10 cm

long portion of a straight wire carrying a current of

10 A

placed in a magnetic field of

0.1 T

making an angle of

37 °

with the wire. What magnetic force does the wire experience?

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 13

A current of $2 A$ enters at the corner $d$ of a square frame $a b c d$ of side $10 cm$ and leaves at the opposite corner $b$ . A magnetic field $B = 0.1 T$ exists in the space in direction perpendicular to the plane of the frame as shown in figure. Find the magnitude of the resultant magnetic force on the four sides of the frame.

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 14

A wire of length

l

carries current

i

along the

y

-axis. A magnetic field exists which is given as

\vec{B} = B_{0} (\hat{i} + \hat{j} + \hat{k}) T

. Find the magnitude of the magnetic force acting on the wire.

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 15

A wire of length I carries a current i along the

y

-axis. A magnetic field exists which is given as

\vec{B} = B_{0} (\hat{i} + \hat{j} + \hat{k}) T .

Find the magnitude of the magnetic force acting on the wire.

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Alpha Question Bank for Medical: Physics>Chapter 25 - Magnetic Effect of Current>Exercise-4>Q 16

A straight, long wire carries a current of

20 A

. Another wire carrying equal current is placed parallel to it. If the force acting on the unit length of the second wire is

2.0 \times 10^{- 4} N

, what is the separation between them?

A proton projected in a magnetic field of 0.04 T travels along a helical path of radius 5.0 cm and pitch 20 cm. Find the components of the velocity of the proton along and perpendicular to the magnetic field. Take the mass of the proton =1.6×10-27 kg.

Important Questions on Magnetic Effect of Current

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A proton projected in a magnetic field of $0.04 T$ travels along a helical path of radius $5.0 cm$ and pitch $20 cm .$ Find the components of the velocity of the proton along and perpendicular to the magnetic field. Take the mass of the proton $= 1.6 \times 10^{- 27} kg .$