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We have three resistors of {if} each. Each resistor can dissipate at most 24 W of power. Find the four possible ways of arranging the
We have three resistors of {if} each. Each resistor can dissipate at most 24 W of power. Find the four possible ways of arranging the three resistors1 and calculate the maximum power that can be dissipated in each of the ways. In the figure the ideal batteries have emfs $1 = 14 V and $2 = 6.0 V and the resistors have resistances R, = 4.3 0 and R2 = 9.3 0. What are (a) the current, the energy dissipation rate in (b) resistor 1 and (c) resistor 2, and the energy transfer rate in (d) battery 1 and (e) battery 27 Is energy being supplied or absorbed by (f) battery 1 and (g) battery 2?A car battery with a 12 Vemf and an internal resistance of 0.093 0 is being charged with a current of 37 A. What are (a) the potential difference across the terminals, (b) the rate Pr of energy dissipation inside the battery and (c) the rate Pem of energy conversion to chemical form? When the battery is used to supply 37 A to the starter motor, what are (d) Vand (e) P,?The figure shows a resistor of resistance R = 6.02 0 connected to an ideal battery of emf % = 14.9 V by means of two copper wires. Each wire has length 22.4 cm and radius 2.80 mm. In dealing with such circuits in this chapter, we generally neglect the potential differences along the wires and the transfer of energy to thermal energy in them. Check the validity of this neglect for the circuit of the figure below. What is the potential difference across (a) the resistor and (b) each of the two sections of wire? At what rate is energy lost to thermal energy in (c) the resistor and (d) each section of wire? Wire 1 Wire 2
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