Aforward biased gap dio de is connected in series with a 1 k2 resister. the e. m.f in the circuit is 10 v. assuming that the built-in voltage of the gap diode is 2 v, 2 marl (i) calculate the current flowing in the circuit. (ii) determine the band-gap energy of gap given that the diode emits light at 562 nm. 000m 2 mar 7(iii) calculate the optical power emitted by the diode assuming 20 % recombination 3 ma efficiency and current flow due to electrons.

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom