The slope of plate characteristic and mutual characteristic curves of a triode value is 0.02 mA/V and 1 mA/V. The amplification factor of triode value is:
A
2×108
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B
20
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C
50
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D
40
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Solution
The correct option is C 50 η=amplification factor=S/mututud chatS/plate cha =1mA/V0.02mA/V =1000.02=50