Q2. (a) Give two examples of non-Ohmic conductors. (1 mark) (b) An electric heater operates at a voltage of 240 V and dr
Posted: Fri Apr 29, 2022 8:34 am
Q2.
(a) Give two examples of non-Ohmic conductors. (1 mark)
(b) An electric heater operates at a voltage of 240 V and draws
a current of 8.3 A. Calculate the resistance and the power of the
electric heater. (2 marks)
(c) The heater is switched on for a total time of 210 minutes.
What is the energy used by the heater during this time in
Kilowatt-Hours?
(a) Give two examples of non-Ohmic conductors. (1 mark)
(b) An electric heater operates at a voltage of 240 V and draws
a current of 8.3 A. Calculate the resistance and the power of the
electric heater. (2 marks)
(c) The heater is switched on for a total time of 210 minutes.
What is the energy used by the heater during this time in
Kilowatt-Hours?