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G.K Question and Answer - Physics Set IV

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1. The resistance of a wire is inversely proportional to the:




2. Resistance of which of the following is unaffected by temperature?




3. A continuous conducting path consisting of wires and other resistances and a switch, between the two terminals of a battery along which an electric current flows is called:




4. Which of the following is a part of electrical circuit?




5. The resistance which can be changed as desired is called:




6.  Which of the following is a current-detecting instrument?




7. Rheostat is the other name of:




8. The law which gives relationship between current and potential difference is called:




9. What is the formula for calculating current?




10. Current is inversely proportional to:




11. The resistance of a conductor depends on its:




12. What is the SI unit of resistance?




13.  In an electric circuit, the amount of work done in moving a unit charge from one point to the other point is called:




14. What is the SI unit of potential difference?




15. One volt is equal to:




16.  Which instrument is used to measure potential difference?




17.  A flow of electric charges in a conductor such as in a metal wire is called:




18. What is the SI unit of electrical conductance?




19.  When 1 coulomb of charge flows through any cross-section of a conductor in 1 second, the electric current flowing through it is said to be:




20. The rate at which electrical energy is consumed is called:




21. To which device is the two ends of a conductor are connected to maintain a potential difference and get a continuous flow of current?




22. The actual flow of electrons which constitute the current is from:




23. Name an electronic device which is used to measure the current in ampere?




24. Name an equipment through which the distances travelled by the wheels of the vehicles are measured?




25. Name a device used for the magnification of the objects?




26. The equipment used in internal combustion heat engine, vehicle engine etc. is known as:




27. The device by which artificial climate is produced:




28. Name an equipment through which electrons are emitted or ejected?




29. Through which equipment human’s heart beats are recorded and detected via graphics?




30. Name a device which is used to convert mechanical energy into electrical energy?




31. The device that confirms the presence of electric charge:




32. Which equipment is employed to project or expose pictures on the screen?




33. Which device is used to measure the depth of seas and oceans?




34. Name a devise used to measure the sharpness of the electric current?




35. Name an instrument used to measure the sound waves inside the water?




36. Name a device used to measure atmospheric humidity?




37. Which device is used to detect and measure the purification of the milk?




38. The equipment through which any substance be cut into very small pieces:




39. Through which device the illumination and intensity of two light sources are compared?