Electricity

Question 1

Define electrical current

Answer 1

Flow of negatively charged particles from the negative to positive terminal.

Question 2

Define conventional current

Answer 2

Flow of positively charged particles from the positive to negative terminal.

Question 3

Define voltage/potential difference

Answer 3

Energy required to move a unit of charge across a circuit

Question 4

Superconductor

Answer 4

A material that has no resistance at 0 °c

Question 5

Critical temperature

Answer 5

The point at which a superconductor has no resistivity

Question 6

Define Ohm’s law

Answer 6

Voltage is directly proportional to current

V~I

Question 7

Charge (coulomb)

Answer 7

Charge passes when a 1A flows for 1 second