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.

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.