Physics

A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal

A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal plane. A…

A charged particle (charge q) is moving in a circle of radius R with uniform speed v

A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic…

A closely wound solenoid of 2000 turns and area of cross-section 1.5 x 10⁻⁴ m² carries

A closely wound solenoid of 2000 turns and area of cross-section 1.5 x 10⁻⁴ m² carries a current of 2.0…

A beam of electron passes undeflected through mutually perpendicular

A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off,…

The weight of a body on surface of earth is 12.6 N. When it is raised to a height

The weight of a body on surface of earth is 12.6 N. When it is raised to a height half…

A planet in a distinct solar system is 10 times more massive than the earth

A planet in a distinct solar system is 10 times more massive than the earth and its radius is 10…

The acceleration due to gravity becomes (g/2) where g=acceleration due to gravity

The acceleration due to gravity becomes (g/2) where g=acceleration due to gravity on the surface of the earth at a…

A satellite of mass m revolves around the earth of radius R at a height x from

A satellite of mass m revolves around the earth of radius R at a height x from its surface. If…

When you move from equator to pole, the value of acceleration due to gravity (g)

When you move from equator to pole, the value of acceleration due to gravity (g) Options (a) Increases (b) Decreases…

A particle of mass ‘m’ is kept at rest at a height 3R from the surface of earth

A particle of mass 'm' is kept at rest at a height 3R from the surface of earth, where 'R'…