1) bjt is of _ types a) 1 b) 2 c) 3 d) 4 2) p type material is made by mixing a) boron b) sodiam c) calcium d) magnesium 3) n type material is made by mixing a) boron b) calcium c) phosporous d) sodium 4) use of transistor is a) amplification b) switching c) a only d) a and b 5) diode works as a) rectifier b) amplifier c) adder d) summer

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