Similarities and differences in magnetic and electric field (Dilpreet posted this question) Similarities Differences Both electric and magnetic field are conservative forcesBoth obey inverse square law Both are non contact forces (Forces can be exert...
PukNitish asks: A large field is possible by inserting a soft iron core inside the solenoid. Explain why? Ans: Soft Iron has high magnetic permeability, so all the magnetic field lines prefer to pass through it. Thus the magnetic field inside the solenoid is intensified.
Suggest two reasons which make the large scale usage of nuclear energy prohibitive. Why are solar cookers covered by a glass plate? What is the colour of insulation over the earth wire? Why is an earth wire connected to metallic part of appliances? What are the factors on which the resistance of a conductor … Continue reading CBSE Class X Physics SA 1 Questions and Answers
Galvin Pinto asked; List the devices where permanent magnets & electromagnets are used. Sketch the pattern of the field lines around a current carrying: Straight Conductor Loop of wire Solenoid Ans: Permanent Magnets are used in Laboratory magnets loud speakers microphones cyclotron generators and many more Pattern of the field lines around a current carrying … Continue reading Devices using permanent magnets and electromagnets