214Chapt. 28CircuitsWhat are, Alex?a) odometer and speedometerb) taximeter and altimeterc) multimeter and ohmmeterd) kilometer and Demetere) ammeter and voltmeter028 qmult 00710 1 4 4 easy deducto-memory: RC circuit time constant13. Thee-folding time or time constant of a simple RC (resistor-capacitor) circuit is given by:a)τ=C/R.b)τ= 1/(RC).c)τ=R/C.d)τ=RC.e)τ=R2/C.028 qmult 10300 3 3 2 tough thinking: infinite ladder resistor mult14.∗∗∗Consider an infinite ladder resistor.There are two terminals A and B at the left:A is theupper terminal; B is the lower terminal. From each terminal, a wire extends to infinity in therightward direction. There are vertical wires at equal intervals connecting the A wire and theB wire: these are the rungs of the ladder.On each vertical wire (each rung) is a resistor ofresistanceR. On the A wire before each node (going rightward) is also a resistor of resistanceR. Draw a diagram.
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