Electricity revision

Which sub-atomic particle represents a proton?

• a

• b

• c

• None

Which sub-atomic particle represents an electron?

• a

• b

• c

• None

Which sub-atomic particle represents a neutron?

• a

• b

• c

• None

When two materials are rubbed against each other, which sub-atomic particles are transferred?

• Protons

• Neutrons

• Electrons

A glass rod is rubbed against a silk cloth. Why does the glass rod become positively charged?

• The protons move from the silk cloth to the glass rod.

• The electrons move from the silk cloth to the glass rod.

• The electrons move from the glass rod to the silk cloth.

• The protons move from the glass rod to the silk cloth.

Which battery has the highest energy per unit charge?

• Lithium-thionyl chloride

• Zinc-carbon

• Lithium (BR)

• Zinc-air

Which battery can push out the least electrons per unit time?

• 18Ah

• 10AH

• 22Ah

• 5Ah

In the following circuit, the resistors are connected in:

• Parallel

• Series and parallel

• Series

In the following circuit, the resistors are connected in:

• Parallel

• Parallel and series

• Series

What happens to the resistance of the wire if the length of the wire is increased while keeping the cross-sectional area and the resistivity constant?

• Decreases

• Stays the same

• increases