(a(i))[2]
Describe two advantages of Circuit B in this windscreen heater.
(a(ii))[2]
Describe, in terms of the water particles, how the heater removes the water droplets from the car windscreen.
(b(i))[2]
Calculate the current through resistor Q.
(b(ii))[3]
Calculate the electrical energy transferred when the current calculated in (b)(i) is present in resistor Q for 5 minutes.
(b(iii))[1]
State which energy store the battery has.
(b(iv))[2]
Calculate the circuit's total resistance.