26. Generally a _________ is used to measure potential difference or emf across an electric device like battery.

27. Current is measured in ________.

28. The device used to measure the current in the circuit is ___________.

29. Ohm’s law was introduced by German Physicist, ____________.

30. The SI unit of resistance is ______. The symbol of ohm is ______.

31. 1 Ohm = ______________

32. The conductors which obey the Ohm’s law are called _________.

33. ____________ are examples of Ohmic conductors.

34. The conductors which do not obey the ohms law are called _______________.

35. _____ or __________ are the examples of non-Ohmic materials.

36. Ohm’s law is not applicable to _______________.

37. Ohm’s law is not applicable semiconductors such as _________ and _________.

38. The obstruction of motion of electrons in a conductor called ___________.

39. The material which offers resistance to the motion of electrons is called _________.

40. The disturbance inside the body due to the passing of the current is felt as ____________.

41. If the current passing through the body reaches _______A, it effects the functioning of the heart and if this much current passes through the heart for more than one second it could be fatal.

42. The electric shock is a combined effect of _____________, electric current and resistance of the human body.

43. A ________ is an electronic measuring instrument that combines several measurement functions in one unit.

44. The filament in a bulb acts an s a __________.

45. The bulb filament made up of _________.