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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।

PhysicsA uniform electric field acts on a plane surface. If the surface is rotated so that flux changes from positive to negative, what has changed?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsIn a uniform electric field, the dipole moment is exactly opposite to the field. Which statement is correct?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 21Hard PhysicsIn a uniform electric field, the angle between dipole moment and field is zero. What is the nature of this position?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 21Hard PhysicsIn a uniform electric field, net force on a dipole is zero, yet it can rotate. What is the reason?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 21Hard PhysicsIf the dipole moment is to remain the same while the charge magnitude is made four times, how should the separation change?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsIn a dipole, the charge magnitude is made three times and the separation is made half. What will be the dipole moment compared with the initial value?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsA plane surface has its area vector toward east and the electric field toward west. What is the sign of flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Easy PhysicsA plane surface is placed in a uniform electric field such that the angle between area vector and electric field is sixty degrees. If the surface is rotated so both become parallel, how will the flux change?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsIn a difficult problem, flux is zero and a dipole is present. What is the safest order of analysis?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsWhat is the key difference between electric flux and electric field?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Easy PhysicsA dipole is placed parallel to the field. If it is in stable equilibrium, how is its potential energy?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 20Medium PhysicsA dipole is placed perpendicular to a uniform electric field. Which statement about net force and torque is correct?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 20Medium PhysicsDoes zero net force on a dipole in a uniform field mean that forces on both charges are zero?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 20Medium PhysicsIf dipole moment becomes three times and the distance of a far point becomes three times, what fraction of the far field remains?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Hard PhysicsFor the far axial field of a dipole, dipole moment is doubled and distance is doubled. What happens to the field?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Hard PhysicsWhy is the distance dependence of far field of a dipole different from that of a point charge?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Hard PhysicsIf a surface is perpendicular to the electric field and the area vector is along the field, why is flux maximum?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsIf a surface is parallel to the electric field, what is the angle between area vector and electric field?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Easy PhysicsArea of a surface is doubled and electric field is tripled, but the angular factor becomes half. How many times does the flux become?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsIf electric field is not perpendicular to a surface, what is the most common mistake while finding flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium