Q. If mica sheet is placed between the plates of a capacitor the capacity increases decreases increases then decreases decreases then increases Answer: increases

Q. Work done in moving a point charge from one point to another point of equipotential surface is W = 1V W = Fr zero W = 1/4V Answer: zero

Q. Electric charge of 100 ?C is 13cm apart from another charge 16.9?C electric force between them is 9x107N 900N 9x105N 9x106N Answer: 900N

Q. When we rub a glass rod with a silk cloth then glass rod acquires negative charge while silk acquires positive charge glass rod acquires positive charge while silk acquires negative charges both glass rod and silk acquire negative charge both glass rod and silk acquire positive charge Answer: glass rod acquires positive charge while

Q. A capacitor holds 0.03 C of charge when fully charged by a 6V battery. To hold 2C of charge, voltage required would be 150V 100V 300V 400V Answer: 400V

Q. Charge on capacitor plates is directly proportional to current electric field intensity potential difference resistance Answer: potential difference

Q. If medium between two charges is air, then value of constant k in SI units will be 5 × 109 Nm²C-2 7 × 109 Nm²C-2 8 × 109 Nm²C-2 9 × 109 Nm²C-2 Answer: 9 × 109 Nm²C-2

Q. Property of material due to which it attracts or repels other objects is friction velocity current charge Answer: charge

Q. If F is force acting on test charge qo, electric field intensity E would be given by E = F – qo E = F/qo E = F + qo E = qo/F Answer: E = F/qo

Q. If an electrons is allowed to move along the field in a non uniform electric field then it will follow Spiral path Straight line Curved path Circular path Answer: Straight line