Which of the following can have positive or negative charge?

Related MCQs

• The highest percentage of carbon that an iron carbon alloy can have is
• Which of the following materials have maximum magnetic permeability?
• The semi-conductors have electrical conductivities of the following order (ohm-cm-1)
• A body which is permanently deformed is said to have undergone
• The solid solution carbon in alpha iron obtained on cooling of 0.2% carbon steel which have been heated above the third critical point is called
• Which of the following hardness tester can be used to determine the hardness of a glass sheet?
• Which of the following material can be used for the filaments in incandescent lamps?
• Which of the following material can withstand maximum shocks without failure?
• Which of the following materials can be used for temperatures upto 500?C?
• Which of the following material can be used at temperatures above 100?C?