Multiple Choice
A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by the atmosphere on the surface of water is
A) 20 kN
B) 50 kN
C) 100 kN
D) 200 kN
Correct Answer:
Verified
Correct Answer:
Verified
Q7: Process in which A.C is converted into
Q8: In transformer, alternating current is induced in<br>A)primary
Q9: High voltages lead to<br>A)less power loss<br>B)more power
Q10: Steady d.c voltage is also known as<br>A)square
Q11: A well designed transformer loses power under<br>A)10%<br>B)1.20%<br>C)0.1%<br>D)20%
Q13: If we have a positive and a
Q14: If charge is placed at infinity, it's
Q15: Graph of alternating current is a<br>A)cos wave<br>B)tan
Q16: Ratio of voltages is equal to ratio
Q17: Gravitational potential is always<br>A)positive<br>B)negative<br>C)zero<br>D)infinity