Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 377 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 1Vatt.soat necha Jaulga teng ? A) 3600 J B) 360 J C) 5600 J D) 5000 J 2 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) J=q/t B) R=UI C) Q=I^2RT D) A=UIT 3 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Ionli bog’lanish B) Elektrolitlar C) Qutbli bog’lanish D) Kovalent bog’lanish 4 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 100 W B) 220 W C) 1,1 kW D) 110W 5 / 25 Faradey doimiysining son qiymatini toping ? A) 7800 C/mol B) 96500 C/mol C) 8000C/mol D) 7200 C/mol 6 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Ohangrabo-temirni tortuvchi B) Tabiy magnitlar C) Suniy magnitlar D) Doimiy magnitlar 7 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) R=I/U B) P=IU C) N=A/t D) I=q/t 8 / 25 Bug’ mashinasini kim kashf etgan ? A) Jems Uatt B) Amper C) Volta D) Kulon 9 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) o`zgarmaydi B) 2 marta ortadi C) 4 marta kamaydi D) 2 marta kamayadi 10 / 25 Qarshiliklari 200 Ω va 300 Ω bo`lgan ikkita elektr lampa parallel ulanib, 240 V tarmoqqa kiritilgan. Umumiy tok kattaligini toping. A) 2 A B) 1.8 A C) 4 A D) 5 A 11 / 25 Elektrlanishning necha turi mavjud ? A) 4 B) 3 C) 5 D) 2 12 / 25 bu shartli belgi qanday nomlanadi? A) Tok manbayi B) O’tkazgichlarning tutashtirmasdan kesishishi C) Qo’ng’iroq D) Kalit 13 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Elektroskop C) Barometr D) Dinomometr 14 / 25 Elektr zanjirida ketma-ket ulangan iste`molchilar qarshiliklari 80, 120 va 200 Om dan iborat. Umumiy kuchlanish 220 V bo`lsa, uchinchi iste`molchidagi kuchlanish tushuvini toping A) 220 V B) 44 V C) 110 V D) 180 V 15 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Tok kuchi B) Elektr toki C) Zaryad D) Musbat zaryad 16 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 8,81*10^-19 C) 2,01*10^-19C D) 9,1*10^-31C 17 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Ampermetr B) Voltmetr C) Areometr D) kondensator 18 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Nuqtaviy zaryad C) Musbat zaryad D) Elementar zaryad 19 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.017 B) 0.5 C) 0,098 D) 0,4 20 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) I=qt B) Q=I^2Rt C) R=ρl/S D) R=U/I 21 / 25 Rezistor so’zining manosi nima ? A) Tok kuchi B) Kuchlanish C) Zaryad D) Qarshilik 22 / 25 Elektr zanjirida 2 m va ko’ndalang kesimining yuzi 0,5 mm2 bo’lgan nixrom simning qarshiligini toping ? A) 220 Ω B) 440 Ω C) 2,2 Ω D) 4,4 Ω 23 / 25 Tok kuchi formulasi keltirilgan javobni aniqlang? A) Q=ItU B) R=U/I C) U=A/q D) I=q/t 24 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 10 C B) 24 C C) 12 C D) 15 C 25 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 20 J B) 15 J C) 220 J D) 155 J 0% Testni qayta ishga tushiring Baholash mezoni 86%-100% 5 baho 71%-85% 4 baho 56%-70% 3 baho 55% va kamiga 2 baho Fikr-mulohaza yuboring Tomonidan Wordpress Quiz plugin Author: InfoMaster Foydali bo'lsa mamnunmiz
