Physics
Circuit breaker usually operate under

After D. C. component has ceased
Steady state of short-circuit current
Transient state of short-circuit current
Sub-transient state of short-circuit current

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Physics
A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?

The surface of the liquid remains horizontal
The liquid surface falls down only at the center of the tank
The liquid surface falls down on the direction of motion and rises up on the back side of the tank
None

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