Physics Circuit breaker usually operate under Sub-transient state of short-circuit current Transient state of short-circuit current After D. C. component has ceased Steady state of short-circuit current Sub-transient state of short-circuit current Transient state of short-circuit current After D. C. component has ceased Steady state of short-circuit current ANSWER DOWNLOAD EXAMIANS APP
Physics Which one is the unit of surface tension of a liquid Joule/ mm Electron volt /cm2 None of these Newton /m2 Joule/ mm Electron volt /cm2 None of these Newton /m2 ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C1>C2 C1 = C2 C1pa = C2pg C2>C1 C1>C2 C1 = C2 C1pa = C2pg C2>C1 ANSWER DOWNLOAD EXAMIANS APP
Physics What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel? 36 24 12 50 36 24 12 50 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following liquids has the least density ? Petrol Mercury Fresh water Salt water Petrol Mercury Fresh water Salt water ANSWER DOWNLOAD EXAMIANS APP
Physics The optical phenomenon that is primarily responsible for the observation of rainbow on a rainy day is Interference Reflection Diffraction Dispersion Interference Reflection Diffraction Dispersion ANSWER DOWNLOAD EXAMIANS APP
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