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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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.
Zero potential in household electricity is called ______________
Fill in the blank(s) with correct word
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.
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