PhysicsKund Physics class 9 to 12 NCERT, JEE - NEET

NCERT Solution Class 1O Science Chapter 12 Magnetic Effects of Electric Current  - Physicskund  Page number 196 1. Why does a compass needle get deflected when brought near a bar magnet? Solution : A compass needle is a small bar magnet when it is brought near a bar magnet its magnetic field lines interact with that of the bar magnet. Hence , a compass needle shows a deflection when brought near the bar magnet Example 12.1 A current through a horizontal power line flows in east to west direction. What is the direction of magnetic field at a point directly below it and at a point directly above it? Solution The current is in the east-west direction. Applying the right-hand thumb rule, we get that the magnetic field (at any point below or above the wire) turns clockwise in a plane perpendicular to the wire, when viewed from the east end, and anti-clockwise, when viewed from the west end. Page number 200 1. Draw magnetic field lines around a bar magnet. Solution : Magnetic field ...

NCERT Solutions for Class 11 Physics Chapter Wise - Physics Kund Chapter 1. Units and Measurements Chapter 2. Motion in a Straight Line Chapter 3. Motion in a Plane Chapter 4. Laws of Motion Chapter 5. Work, Energy and Power Chapter 6. System of Particles and Rotational Motion Chapter 7. Gravitation Chapter 8. Mechanical Properties of Solids Chapter 9. Mechanical Properties of Fluids Chapter 10. Thermal Properties of Matter Chapter 11. Thermodynamics Chapter 12. Kinetic Theory Chapter 13. Oscillations Chapter 14. Waves

NCERT Solution for Class 9 Science Chapter Wise - 2023-24 Chapter 1 MATTER IN OUR SURROUNDINGS  Chapter 2 IS MATTER AROUND US PURE?  Chapter 3 ATOMS AND MOLECULES  Chapter 4 STRUCTURE OF THE ATOM  Chapter 5 THE FUNDAMENTAL UNIT OF LIFE   Chapter 6 TISSUES   Chapter 7 MOTION    Chapter 8 FORCE AND LAWS OF MOTION  Chapter 9 GRAVITATION  Chapter 10 WORK AND ENERGY  Chapter 11 SOUND    Chapter 12 IMPROVEMENT IN FOOD RESOURCES

NCERT Solutions Class 11 Physics Chapter 1 Units and Measurements is prepared by our senior and renowned teachers of Param Himalaya. Primary focus while solving these questions of class 11 in NCERT textbook, also do read theory of this Chapter 1 Units and Measurements while going before solving the NCERT questions. Question 1.1. Fill in the blanks : a. The volume of a cube of side 1 c m 3 = .... m 3 . b. The surface area of a solid cylinder of radius 2.0 cm and height 10.0 cm =.. (mm) 2 . c. A vehicle moving with a speed of 18 km h –1 covers .... m in 1 s. d. The relative density of lead is 11.3. Its density is .... g cm –3 or .... kg m –3 . Solution : a. Length of edge = 1cm = $\frac{1}{100}$ m Volume of the cube = side 3 Putting the value of side, we get Volume of the cube = ( $\frac{1}{100}$ m) 3 =(10 -2 m) 3 = 10 -6 m 3 . The volume of a cube of side 1 cm = 10 -6 m 3 b. Given, Radius, r = 2.0 cm = 20 mm (convert cm to mm). Height, h = 10.0 cm =100 mm. The formula of total...