CBSE Class 12-science Answered
How is current represented Mathematically in forward bias?
Asked by rudrakanttiwari2002 | 25 Nov, 2019, 09:42: AM
Expert Answer
Typically, voltage V is applied through a resistance R to forward bias a diode as shown in figure.
VD is voltage drop across diode. For silicon diodes VD is around 0.6 tp 0.7 V. For Germenium diode VD is about 0.3 V.
Current i passing through diode is given as :- i = ( V - VD ) / R
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Infra red rays and UV rays are both electromagnetic waves thattravel with speed of light.
Hence ratio of their speed is 1
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magnification = fo / fe = focal length of objective / focal length of eyepiece = 60 /5 = 12
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Answered by Thiyagarajan K | 25 Nov, 2019, 11:37: AM
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