1. Which of the following laws is associated with the heating effect of electric current ?Joule's law Ohm's law Faraday's law Newton's law

1. Which of the following laws is associated with the heating effect of electric current ?Joule's law Ohm's law Faraday's law Newton's law View Answer Discuss in Forum Report Question2. The value of acceleration due to gravity ‘g’ depends on: 1. Constant of Gravitation ‘G’ 2. Mass of the earth ‘M’ 3. Mass of the falling object ‘m’ 4. Radius of the earth ‘R’ ?a, c, d b, c, d a, b, c a, b, d View Answer Discuss in Forum Report Question3. Which element in the periodic table forms maximum number of compounds ?H O S C View Answer Discuss in Forum Report Question4. A body at rest can have ?Speed Velocity Momentum Energy View Answer Discuss in Forum Report Question5. A solid metallic hemisphere with radius r is melted and cast into a solid right circular cone with the radius of the base = r. What is the ratio of their curved surface areas ?5/?2 2/?5 3/2 5/2 View Answer Discuss in Forum Report Question6. How much work is done in moving a charge of 5 C across two points having a potential difference of 16 V ?65 J 45 J 40 J 80 J View Answer Discuss in Forum Report Question7. Which of the following statements is true ?Carbon monoxide diffuses from lungs into blood and oxygen diffuses from blood into lungs Carbon dioxide diffuses from lungs into blood and oxygen diffuses from blood into lungs Oxygen diffuses from lungs into blood and carbon dioxide diffuses from blood into lungs Oxygen diffuses from lungs into blood and carbon monoxide diffuses from blood into lungs View Answer Discuss in Forum Report Question8. Mendeleev could not assign a correct position to which of the following elements in his table ?Lithium Potassium Hydrogen Helium View Answer Discuss in Forum Report Question9. The atmospheric pressure at sea level is ........ atm ?0.001 1 0 0.1 View Answer Discuss in Forum Report Question10. Who demonstrated that objects of different masses would reach the ground together when dropped from the same height ?Isaac Newton Archimedes Robert Boyle Galileo Galilei

Name two electric devices for each where(a) heating effect of current is used and(b) magnetic effect of current is used

ame some electric appliances where the heating effect of the electric current is used

Ohm's law is applicable when temperature of the conductor is constant Statement B: Ohms law states that the voltage applied is inversely proportional to current

Which of the following laws do not form a Maxwell equation?ans.Ampere’s Law Faraday’s lawGauss’s Law Planck’s law Previous Marked for Review Next