electricity and electronics U3

what is a commutator?

• a wheel

• a ring that changes the direction of the current

• a device used to create sparks

• someone who commutes to work every day

which of these words mean:

indicatore, bobina, colonnina di ricarica

• coil of wire

• gauge

• power station

• charging station

• speed

_________ motors don't need a commutator

induction motors require little ​___________ than others.

how do you say:

inquinare inquinante inquinato

a m_______ f____ is created when current passes through a coil of wire

to wear down significa...

• indossare pantaloni

• abbassarsi

• consumarsi

• diminuire

translate:

LE MACCHINE IBRIDE SONO PIU' COSTOSE E INQUINANO UN PO'

translate:

IL MOVIMENTO DI CAMPI MAGNETICI INDUCE CORRENTE ELETTRICA

translate:

LA PRIMA METROPOLITANA A VAPORE NACQUE A LONDRA NEL 1863