Ncert solutions for class 12 physics English medium

NCERT Solutions for Class 12 Physics Chapter 6 Electromagnetic Induction. Question 1.Predict the direction of induced current in the situations described by the following Fig. 2(a) to (f). Answer:(a) By Lenz’s law, the face of the coil towards the south pole of the magnet opposes the south pole. So this face should behave as the … Read more

NCERT Solutions for Class 12 Physics 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 angle of dip at a location in southern India is about 18°. Would … Read more

NCERT Solutions for Class 12 Physics 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 carries a current … Read more

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 resistance 3Ω is connected to a resistor. If the current in … Read more

NCERT Solutions for Class 12 Physics 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 potential be … Read more

NCERT Solutions for Class 12 Physics 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 another small … Read more