Determine the charge on each balloon using the electroscope when it has been charged positively. (Hint: Do the leaves spread farther apart or collapse when the charged object is brought near the electroscope knob?)
[Ques. 2] True or False? (a) As described by the definition of capacitance C = Q/V, it follows that the potential difference across an uncharged capacitor is zero.
1.True
2.False
[Ques. 3] Rub each of two inflated toy balloons with wool or fur. Will they attract each other or repel each other? Explain why.
[Ques. 4] Determine the charge on a glass rod after rubbing it with silk. The charge on the glass rod is _______________ (positive or negative). The charge on the silk cloth is _______________ .
Fill in the blank(s) with correct word
[Ques. 5] True or False? From the definition of capacitance C = Q/V, it follows that an uncharged capacitor has a capacitance of zero.
1.True
2.False
[Ques. 6] How do colors differ when viewed under incandescent light and fluorescent light?
[Ques. 7] If the primary colors of the subtractive theory are cyan, magenta, and yellow, why are the colors in the artist's subtractive theory red, blue, and yellow?
[Ques. 8] Name the primary and secondary colors of the subtractive theory of color.
[Ques. 9] A metallic sphere A of radius 1 cm with charge 450 nC hangs on an insulating thread inside an uncharged thin metallic spherical shell B of radius 2 cm. Next, A is made temporarily to touch the inner surface of B. How is the charge then shared between them?
[Ques. 10]
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