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12th CBSE
IMPORTANT
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What can be the cause of helical motion of a charged particle?

Important Questions on Magnetic Effect of Current

EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 30
A proton and an electron travelling along parallel paths enter a region of uniform magnetic field, acting perpendicular to their paths. Which of them will move in a circular path with higher frequency?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 31
When a charged particle moving with a velocity v→ is subjected to a magnetic field B→ the force acting on it is non‐zero. Would the particle gain any energy?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 32
An electron with speed v enters at right angle in a region of uniform magnetic field B. Write the expression for the radius of the path it follows.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 33
An electron beam projected along +X‐axis, experiences a force due to a magnetic field along the +y‐axis. What is the direction of the magnetic field?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 34
An electron and a proton moving with the same speed enter the same magnetic field region at right angles to the direction of the field. For which of the two particles will the radius of circular path be smaller?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 35
A charged particle moving in a uniform magnetic field penetrates a layer of lead and thereby loses one‐half of its kinetic energy. How does the radius of curvature of its path change?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 36
Write the condition under which an electron will move undeflected in the presence of crossed electric and magnetic fields.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 4 - Magnetic Effect of Current>Text Based Exercises>Q 37
A straight conductor AB of a circuit lies along the X‐axis from x=-a2 to x=+a2 and carries a current I. What is the magnetic field due to its conductor AB at a point x=+a?