Nyob rau hauv kev tsis ncaj ncees p-n kev sib tshuam?

Cov txheej txheem:

Nyob rau hauv kev tsis ncaj ncees p-n kev sib tshuam?
Nyob rau hauv kev tsis ncaj ncees p-n kev sib tshuam?
Anonim

Nyob rau hauv kev tsis ncaj ncees p-n kev sib tshuam, muaj tsuas yog qhov cuam tshuam sab hauv lub peev xwm, nyob rau sab n yog ntawm qhov muaj peev xwm siab dua thiab p sab yog qhov qis dua.

Yuav ua li cas hauv kev sib tshuam pn tsis ncaj ncees?

Nyob rau hauv ib qho kev tsis sib haum xeeb p-n kev sib tshuam, qhov sib txawv ntawm p- cheeb tsam mus rau n- cheeb tsam vim . (a) dawb electrons hauvn-thaj tsam nyiam lawv. … Nyob rau hauv ib qho kev tsis sib haum xeeb p-n hlws ris, qhov sib txawv ntawm cov neeg nqa khoom thauj thoob plaws qhov kev sib tshuam yuav tshwm sim los ntawm qhov siab dua mus rau qis dua. Yog li teb (c) yog lawm.

nqe lus twg yog qhov tseeb rau kev sib txuas tsis ncaj ncees?

Dab tsi ntawm cov hauv qab no muaj tseeb nyob rau hauv rooj plaub ntawm kev tsis sib haum xeeb p-n junction diode? Nqe lus piav qhia: Ib qhov sib txawv yog tsim nyob thoob plaws cov kev sib tshuam vim kev sib txuas ntawm qhov & electrons.

Txoj kev tsis ncaj ncees yog dab tsi?

Tus kwv yees tau hais tias tsis muaj kev ncaj ncees yog tias nws qhov kev tsis ncaj ncees yog sib npaug rau xoom rau txhua qhov txiaj ntsig ntawm qhov ntsuas θ, lossis sib npaug, yog tias tus nqi xav tau ntawm tus kwv yees sib npaug ntawm qhov parameter.

Thaum pn kev sib tshuam tsis ncaj ncees qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog?

Nyob rau hauv qhov tsis ncaj ncees PN-kho qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog zero, vim tias sib npaug tab sis cov neeg nqa khoom hla hla kev sib tshuam.

Pom zoo:

Nthuav cov khoom
Pob splanchnic paj hlwb synapse?
Nyeem ntxiv

Pob splanchnic paj hlwb synapse?

Cov hlab ntsha loj dua splanchnic taug kev los ntawm diaphragm thiab nkag mus rau hauv plab kab noj hniav. Nws fibers synapse ntawm celiac ganglia. Cov hlab ntsha txhawb nqa rau lub celiac plexus, lub network ntawm cov hlab ntsha nyob rau thaj tsam ntawm qhov chaw ntawm lub cev celiac ceg ntawm lub plab aorta.

Yuav coreopsis puas tawg rau lub caij ntuj sov?
Nyeem ntxiv

Yuav coreopsis puas tawg rau lub caij ntuj sov?

yog qhov kev xaiv zoo meej. Nrog ntau tshaj 80 hom coreopsis, muaj ntau yam kom haum txhua lub vaj tsim. Haiv neeg rau North America, coreopsis nroj tsuag loj hlob nyob rau hauv upright clumps thiab feature masses ntawm kaj, showy, daisy-zoo li paj thoob plaws lub caij ntuj sov.

Lub ntsiab lus ntawm kev hush up yog dab tsi?
Nyeem ntxiv

Lub ntsiab lus ntawm kev hush up yog dab tsi?

: tsi ntsiag to kuv hais rau nws kom txhob maj. slang txhais li cas? Koj hais 'Hush! ' rau ib tug thaum koj nug lossis qhia kom lawv nyob ntsiag to. Nkauj ruam ruam? "Tseem" yog lus Southern uas hais tias " shut up .