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There are unifonn electric and magnetic fields in a region pointing along X-axis. An α-particle is projected along Y-axis with a velocity v. The shape of the trajectory will be :
An α-particle projected along the Y-axis with velocity v in the presence of uniform electric and magnetic fields along the X-axis experiences a magnetic force perpendicular to both velocity and magnetic field, causing circular motion in the YZ plane. The electric field imparts acceleration along theRead more
An α-particle projected along the Y-axis with velocity
v in the presence of uniform electric and magnetic fields along the X-axis experiences a magnetic force perpendicular to both velocity and magnetic field, causing circular motion in the YZ plane. The electric field imparts acceleration along the X-axis, resulting in a helical trajectory with its axis parallel to the X-axis.
Answer: (C) Helical with its axis parallel to X-axis.
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A current 10 A is flowing from east to west in a long straight wire kept on a horizontal table. The magnetic field developed at a distance of 10 cm due north on the table is
The magnetic field around a long, straight current-carrying wire is given by Ampere’s circuital law as: B = μ0I/2πr .Here: μ0 4π × 10⁻⁷Tm/A (permeability of free space) I =10 A (current) r = 0.10m (distance) Substituting values: B = 4π × 10⁻⁷× 10/2π × 0.10 = 2 × 10⁻⁵T To determine the direction ofRead more
The magnetic field around a long, straight current-carrying wire is given by Ampere’s circuital law as:
B = μ0I/2πr
.Here:
μ0 4π × 10⁻⁷Tm/A (permeability of free space)
I =10 A (current) r = 0.10m (distance)
Substituting values:
B = 4π × 10⁻⁷× 10/2π × 0.10 = 2 × 10⁻⁵T
To determine the direction of the magnetic field, use the right-hand thumb rule: Point the thumb in the direction of current (east to west) and curl the fingers around the wire. At a point due north, the magnetic field points downward. Hence, the correct answer is:
(A) 2 × 10⁻⁵ T, acting downwards.
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Name three postures that might be observed in classical dance forms.
Classical Indian dance forms incorporate three significant postures: Samabhanga, Tribhanga and Abhanga. Samabhanga represents perfect symmetry, often seen in Bharatanatyam and Kathak, providing balance and precision. Tribhanga, featuring three body bends, is common in Odissi, creating a dynamic andRead more
Classical Indian dance forms incorporate three significant postures: Samabhanga, Tribhanga and Abhanga. Samabhanga represents perfect symmetry, often seen in Bharatanatyam and Kathak, providing balance and precision. Tribhanga, featuring three body bends, is common in Odissi, creating a dynamic and expressive form. Abhanga, a slight lateral tilt, is used in Manipuri and Mohiniyattam, adding fluidity and grace. These postures help dancers convey emotions, enhance visual appeal and maintain structural discipline in performances.
See lessWhat is the breathing technique recommended while performing dance postures like Tribhanga and Dwibhanga?
When performing postures like Tribhanga and Dwibhanga, dancers employ controlled, rhythmic breathing to sustain balance and enhance expression. Inhalation supports extended movements, allowing fluidity in the body's curves and bends, while exhalation aids in transitioning smoothly between poses. ThiRead more
When performing postures like Tribhanga and Dwibhanga, dancers employ controlled, rhythmic breathing to sustain balance and enhance expression. Inhalation supports extended movements, allowing fluidity in the body’s curves and bends, while exhalation aids in transitioning smoothly between poses. This breathing technique ensures grace, stamina and precision, preventing physical strain. Proper breath control is essential for maintaining the elegance and storytelling essence of Indian classical dance, ensuring a seamless blend of movement, rhythm and expression.
See lessWhat should you do when expanding or stretching the body during a dance?
While expanding or stretching the body during dance, a dancer should maintain control, elongate movements smoothly and synchronize them with breathing. Proper extension enhances expression, creating visually appealing postures while ensuring balance. Slow and deliberate expansion allows fluidity inRead more
While expanding or stretching the body during dance, a dancer should maintain control, elongate movements smoothly and synchronize them with breathing. Proper extension enhances expression, creating visually appealing postures while ensuring balance. Slow and deliberate expansion allows fluidity in transitions, avoiding abrupt movements. Whether in Bharatanatyam’s angular stretches or Odissi’s curves, careful execution ensures grace, rhythm and storytelling effectiveness, contributing to an aesthetically powerful performance in classical dance traditions.
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