Question

(i) Draw a schematic diagram of a circuit consisting of a battery of five 2 V cells, a 5 Ohm resistor, a 10 Ohm resistor and a 15 Ohm resistor, and a plug key, all connected in series.
(ii) Calculate the electric current passing through the above circuit when the key is closed.

Answer 1

In the given figure, a diode D is connected to an external resistance R = 100 Ω and an e.m.f. of 3.5 V.