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Chapter 17: Q61P (page 473)
Question: (I) Write the binary number 1010101010101010 as a decimal number.
The decimal equivalent of 1010101010101010 is 43690.
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Question: (I) Write the decimal number 116 in binary.
A battery establishes a voltage Von a parallel-plate capacitor.After the battery is disconnected, the distance between the plates is doubled without loss of charge. Accordingly,the capacitance _________ and the voltage between theplates _________.
(a) increases; decreases.
(b) decreases; increases.
(c) increases; increases.
(d) decreases; decreases.
(e) stays the same; stays the same.
A lightning flash transfers 4.0 C of charge and 5.2 MJ of energy to the Earth.
(a) Across what potential difference did it travel?
(b) How much water could this boil and vaporize, starting from room temperature? (See also Chapter 14.)
State clearly the difference (a) between electric potential and electric field, (b) between electric potential and electric potential energy.
A parallel-plate capacitor with plate area\({\bf{A = 2}}{\bf{.0}}\;{{\bf{m}}{\bf{2}}}\)and plate separation\({\bf{d = 3}}{\bf{.0}}\;{\bf{mm}}\)is connected to a 35-V battery (Fig. 17鈥�51a).
(a) Determine the charge on the capacitor, the electric field, the capacitance, and the energy stored in the capacitor.
(b) With the capacitor still connected to the battery, a slab of plastic with dielectric strength K =3.2 is placed between the plates of the capacitor, so that the gap is completely filled with the dielectric (Fig. 17鈥�51b). What are the new values of charge, electric field, capacitance, and the energy stored in the capacitor?\(\left( {{\bf{1}}\;{\bf{byte = 8}}\;{\bf{bits}}{\bf{.}}} \right)\)
FIGURE 17-51 Problem 96
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