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Class 12 Mcq

Class 12 Physics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

PhysicsIn a difficult combined question on electric flux and a dipole, what is the most useful first decision?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Hard PhysicsWhat is the most useful distinction while remembering the axial and equatorial results of a dipole field?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsWhy can the sign of flux change when area vector direction is changed for an open surface?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsHow can electric flux be positive or negative even though it is a scalar?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsWhy must external work be done to rotate a dipole from stable to unstable equilibrium?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Hard PhysicsIf potential energy of a dipole is maximum, what will be its orientation?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsIf potential energy of a dipole is minimum, in which direction is its dipole moment?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsIf torque on a dipole in a uniform electric field is zero, which position is possible?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsIf dipole moment is stated zero but equal opposite charges have non-zero separation, what is the issue in the statement?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsFor a closed surface, what sign rule follows from taking the area vector outward?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Easy PhysicsIf flux through a surface is negative and the area vector of the same surface is reversed, what happens to the flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsIf dipole moment is opposite to electric field, why is the position unstable after a small disturbance?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Hard PhysicsWhy does a dipole tend to return when slightly rotated from the position aligned with the field?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsWhy is it not necessary for net force on a dipole to remain zero in a non-uniform electric field?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsWhy can a dipole rotate in a uniform electric field even though net force on it is zero?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsDipole moment is made three times and electric field is made one third. At the same angle, how will torque change?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsDipole moment and electric field are both doubled while the angle remains the same. What happens to torque?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsThe angle between dipole moment and electric field is changed from 120 degrees to 180 degrees. What happens to torque magnitude?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsIn a uniform electric field, the angle between dipole moment and field is changed from 45 degrees to 90 degrees. What happens to torque?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsWhy is the field at a far axial point of a dipole along the dipole moment?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard