Substances which allow electric current to pass through them are called::Conductors::insulation::semi conductors::none of the above
Electric charge carriers in a P-type semi conductor are::holes::Electrons::protons::neutrons
Electric charge carries in an n-type semi conductors are::Electrons::holes::Protons::neutrons
With the rise in temperature, the resistance of a semi conductor::decreases::increases::remains unchanged::first decreases and then increases
When the temperature of a semi conductor is increased, its electrical conductivity::Increases::remains unchanged::decreases::first decreases then increases
The binding in semiconductor is::Covalent::ionic::mutual::metallic
The element that can be used as an acceptor impurity to dope Silicon is::phosphorous::Antimony::arsenic::boron
The valency of donor impurity used for doping used for doping germanium crystals is::5::2::3::4
A device that converts one type of energy into another type of energy is called::a transducer::A transmitter::a receiver::an amplifier
The device that converts electrical energy into corresponding sound signal is::a loud speaker::A transmitter::a receiver::a microphone
