Each plate of a parallel-plate air capacitor has an area of 0.0010 m^2, and the

Question

Each plate of a parallel-plate air capacitor has an area of 0.0010 m^2, and the separation of the plates is 0.050 mm. An electric field of 7 4 times 10^6 V_in is present between the plates What is the capacitance of the capacitor, in pF? (pico-10^-12.) The resistivity of gold is 2 44middottimes 10^-8 Ohm middot m at a temperature of 20 degree C. A gold wire 1.8 mm in diameter and 14 cm long, carries a current of 480 ma. The power dissipated in the wire is closet are: 0.14 mW 0.077 m W 0.31 mW 0.19 mW 0.25 mw Each of the resistors in the circuit shown in Figure 19.1 has a resistance of 180.0 Ohm. What is the equivalent resistance of the circuit? Figure 19.1

Explanation / Answer

6) Capacitance = Ae0/d

= 0.0010*8.85e-12/0.05e-3

= 177*10^-12 F

= 177 pF answer

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