Which of the following statements is correct regarding the charge of semiconductors?
- A$N-$type germanium is negatively charged and $P-$type germanium is positively charged.
- BBoth $N-$type and $P-$type germanium are neutral.
- C$N-$type germanium is positively charged and $P-$type germanium is negatively charged.
- DBoth $N-$type and $P-$type germanium are negatively charged.
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