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For a power transistor, if base current IB is increased keeping Vce constant; then______

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For a power transistor, if base current IB is increased keeping Vce constant;  then______

(a) IC increases

(b) IC decreases

(c) IC remains constant

(d) IC  changes sinusoidal

I had been asked this question in my homework.

My question is taken from Power BJTs topic in chapter Differential and Multistage Amplifiers of Electronic Devices & Circuits

1 Answer

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Right answer is (a) IC increases

The best I can explain: IB  is directly proportional to Ic. The IC curve is linearly distributed when using IB as a parameter, and exponentially distributed using VBE as a parameter. So when VBE is constant, the transistor current IC is almost linear with respect to IB.

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