Question
In a refrigerator, the cooling system should always be
–Solution
The compressor is the motor (or engine) of the cooling system. It is normally at the bottom of the refrigerator in the back. The compressor runs whenever the refrigerator thermostat calls for cooling.
The electric and magnetic fields of an electromagnetic wave are _____________
Which of the following is the principle behind the working of a hydraulic press?
One kilogram of ice at 0° C is mixed with one kilogram of water at 85° C. The final temperature of the mixture is
(Tale specific heat of ...
The work done by a centripetal force on an object moving in a circular path is:
A particle moves along the x-axis such that its velocity varies with position as
v(x) = k√(a2 – x2)
where k...
Which one of the following is not a function of the liver?
A galvanometer coil has a resistance of 14 Ω and the metre shows full scale deflection for a current of 4 mA. How will you convert the metre into a vo...
A ball is projected from the ground at 45°. It strikes a vertical wall and rebounds with the same speed making the same angle on the other side. If th...
A train approaches a stationary observer with a speed of 36 km/h. It emits a sound of frequency 500 Hz. If the speed of sound is 340 m/s, what is the ap...
Which of the following is a characteristic of a conductor?
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