physics quiz

what type of generators we use in our country

• AC

• DC

• AC & DC

• None oh these

the movement of ions within the cell from one _ to the other

conect the cell directly through the wire , if we do so it will lose its power to produce electricity

• true

• false

metal are good conductors wheres non metals except ____are insulators

mostly used button cells are

• silver - silver oxide cell

• lithium- lihium ion cell

• almunium-almunium oxide cell

• none of these

zinc container acts as , the carbon rod with cap acts as a ___

• negative, postive teminal

• postive, negative teminal

• neutral, neutral

• all of these

if a circuit is incomplete you have to place a conductor to complete the circuit what type of substance you will prefer?

• wood

• rubber

• graphite

• none of these

electricity can be produced in many ways the sources in which electricity is produced by virtue of chemical reactions are called

• electro chemical cells

• cells

• electrochemical cells ,cells

• none of these

solar cells are used for producing electricity for use in space stations ,artificial satellites and remote places

• true

• false

the formula of magnese dioxide and ammonium chloride is

• (MnO2,NH4Cl)

• (MnO9,NHRCI)

• (MnO1,NH8CL)

• no formula