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In a transistor circuit, the base current changes from $30 μ A t o 90 μ A .$ If the current gain of the transistor is 30, the change in emitter current is

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1.60 mA

0.96 mA

1.22 mA

1.86 mA

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detailed solution

Correct option is D

(4)ΔICΔIB=β ⇒ ΔIC90−30=30 ⇒ ΔIC=1800 μA=1.8 mA∴ ΔIE = ΔIC + ΔIB=1800 μA+60μA=1.86 mA

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In a transistor circuit, the base current changes from 30 μA to 90 μA. If the current gain of the transistor is 30, the change in emitter current is

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Ready to Test Your Skills?

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In a transistor circuit, the base current changes from $30 μ A t o 90 μ A .$ If the current gain of the transistor is 30, the change in emitter current is