Chapter 5 Magnetism and Matter Question 1. Answer the following questions regarding earth’s magnetism : (a) A vector needs three quantities for its specification. Name the three independent quantities conventionally used to specify the earth’s magnetic field. (b) The...
Chapter 4 Moving Charges and Magnetism Question 1. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the center of the coil? Answer: Question 2. A long straight wire...
Chapter 3 Current Electricity Question 1. The storage battery of a car has an e.m.f. of 12 V. If the internal resistance of the battery is 0.4Ω, what is the maximum current that can be drawn from the battery ? Answer: Question 2. A battery of e.m.f. 10 V and internal...
Chapter 2 Electrostatic Potential and Capacitance Question 1. Two charges 5 x 10-8 C and -3 x 10-8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero. Ans. Let the...
Chapter 1 Electric Charges and Fields Question 1. What is the force between two small charged spheres having charges of 2 x 10-7 C and 3 x 10-7 C placed 30 cm apart in the air? Answer: Question 2. The electrostatic force on a small sphere of charge 0.4 μC due to...
