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Physics – Alternating Current
The A.C e.m.f can be represented which kind of wave form?
Answer A : Sinusoidal
Answer B : Cosine wave
Answer C : Tangent wave
Answer D : Linear
Physics – Heat & Thermodynamics
If velocity of the gas particles increase by twice. The pressure exerted by the gas?
Answer A : Increase by two times
Answer B : Decrease by two times
Answer C : Increasy by four times
Answer D : Decrease by four times.
Physics – Fluid Dynamics
Within a fluid flowing horizontally?
Answer A : Lowest speed occurs where the pressure is highest.
Answer B : Lowest speed occurs where the pressure is lowest.
Answer C : Pressure remains constant.
Answer D : Speed is independent of pressure in horizontal flow.
Physics – Work, Force & Energy
If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of the car A relative to the car B?
Answer A : 10
Answer B : 40
Answer C : 50
Answer D : None of the above.
Physics – Electromagnetic Induction
What energy is stored in an inductor of 40mH, when a current of 8 A passing through it ?
Answer A : 260 mJ
Answer B : 1.3 J
Answer C : 1.6 mJ
Answer D : 2.3 J