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

Q. Electric charge of 100 ?C is 13cm apart from another charge 16.9?C electric force between them is 9x107N900N9x105N9x106N Answer: 900N

Q. When we rub a glass rod with a silk cloth then glass rod acquires negative charge while silk acquires positive chargeglass rod acquires positive charge while silk acquires negative chargesboth glass rod and silk acquire negative chargeboth glass rod and silk acquire positive charge ...

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 150V100V300V400V Answer: 400V

Q. Charge on capacitor plates is directly proportional to currentelectric field intensitypotential differenceresistance Answer: potential difference

Q. If medium between two charges is air, then value of constant k in SI units will be 5 × 109 Nm²C-27 × 109 Nm²C-28 × 109 Nm²C-29 × 109 Nm²C-2 Answer: 9 × 109 Nm²C-2

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

Q. If F is force acting on test charge qo, electric field intensity E would be given by E = F - qoE = F/qoE = F + qoE = 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 pathStraight lineCurved pathCircular path Answer: Straight line

Q. Selenium becomes a conductor in light so it behaves like SemiconductorPhotodiodeLight emitting diodeCapacitor Answer: Photodiode

Q. Two charges are placed at a certain distance. If the magnitude of each charge is doubled the force will become 1/4th of its original value1/8th of its original value4 times of its original value8 times of its original value Answer: 4 times of its original value

Q. 1 pico farad (1pF) is equal to 1×10-9F1×10-12F1×10-6F1×10-10F Answer: 1×10-12F