What is meant by a heat flow line?
What will be an ideal response?
A heat flow line is a path of conduction heat transfer. Conduction cannot cross a
heat flow line.
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Chemical energy is transformed into gravitational energy when
A) a leaf undergoes photosynthesis. B) a person walks uphill. C) water evaporates. D) a car accelerates. E) a block slides downhill.
When a capacitor is fully charged, the current through the capacitor in a direct-current circuit is
a. zero. b. at its maximum value. c. equal to the current in a resistive circuit in parallel with the capacitor circuit. d. greater than the current in a resistor that is farther from the battery than the capacitor. e. zero if it is the only capacitor, but maximum if there is another capacitor in series with it.
A current element (length = 1.0 cm) lies along the x axis with its center at x = 0 and carries a 20-A current in the positive x direction. Consider only the field of this current element and decide which combination of the following statements is correct. 1 . The field at (0, 0, 1.0 m) is in the positive z direction. 2 . The field at (0, 1.0 m, 0) is in the negative y direction. 3 . The field at
(1.0 m, 0, 0) is zero. 4 . The field at (0, 0, 1.0 m) is in the negative y direction. a. 3 and 4 b. 1 and 3 c. 2 and 4 d. 1 and 2 e. None of these
Zero potential in household electricity is called ______________
Fill in the blank(s) with correct word