In case of parallel plate capacitor, if the plate separation is doubled and plate area is halved, the capacitance becomes:
A. FOUR TIMES
B. ONE HALF
C. ONE FOURTH
D. ZERO.
Answer: C. ONE FOURTH
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Which jovian planet has the most extreme seasonal changes, and why?
A) Uranus, because of its extreme axis tilt B) Jupiter, because of its large mass C) Saturn, because it has an axis tilt similar to Earth D) Neptune, because of its varying distance from the Sun
Draw the thermal circuit for heat transfer through a double-glazed window. Identify each of the circuit elements. Include solar radiation to the window and interior space.
GIVEN
- Double-glazed window
FIND
- The thermal circuit
SKETCH
It is a well-known fact that water has a higher specific heat capacity than iron. Now, consider equal masses of water and iron that are initially in thermal equilibrium. The same amount of heat, 30. calories, is added to each
Which statement is true? A) They remain in thermal equilibrium. B) They are no longer in thermal equilibrium; the iron is warmer. C) They are no longer in thermal equilibrium; the water is warmer. D) It is impossible to say without knowing the exact mass involved and the exact specific heat capacities.
The size of the current flowing through a conductor equals the __________ divided by the conductor's ___________
Fill in the blank(s) with correct word