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Transistors has replaced __________. (diodes, vacuum tubes, rectifiers, photovoltaic cell)

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Kalaam Sir Tuition

vacuum tubes
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Engineer with excellent knowledge of almost all subjects of school and college level

vacuum tubes
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Teacher

Vacuum tube
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Ph D (Physics)

vacuum tubes
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Expert Mathematician

vaccum tubes
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I AM A EXCELLENT MATHEMATICS TEACHER.

vacuum tubes
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Want to become a good Teacher in my life.

Vacuum
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Want to become a good Teacher in my life.

Vacuum tubes
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Maths teacher

vacuum tubes
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Cracked IIT, AIEEE, NIT Trichy Graduate,Female, Work at Oracle

diodes
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