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.

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iron would move it is magnetic there is a mag field around the current in the wire

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s