Question

need help to do the pressure and flow parts, heres a pic of the circuit

There will be a flow from the battery when the switch is open and, for the sake of discussion, we'1 call that flow I glow. Assume that the obstacle presented by any of the identical bulbs is L no matter what flow goes through it. (This is equivalent to; assume that the bulbs are ideal') Copy the following table into your pre-lab Table 6; Pressure Difference caused by the Battery through bulb Flow Obstacle presentedFlow from to Battery (in terms Battery of I Switch open l glow Switch closed Fill out the rest of table six in your pre-lab. 17 Explain the change in brightness of bulb A when the switch closes. [11 Notice that this explanation is not possible without the knowing about pressure difference (as measured by product"). At least in this one case, the idea of "difference in pressure" shows its value in predicting brightness changes in DC circuits. Let's see if the idea helps in the context of circuit 9 (below) I Multimeters Purpose .To connect flow of electricity, obstacle and pressure difference to quantities that the DMM can measure To introduce DMM's and use them to make measurements Equipment I multimeter with an input impedance of at least 10 M2 2 Rechargeable batteries 3 rheostats (with 30 A.W.G. Kanthal AlI) 3が48 bulbs in bulb-holders 8 alligator-to-alligator wires pair of 36" banana-to-alligator wires 2 pairs of 24" banana-to-banana leads *1 large resistor (22 M) Verify that you have all of the equipment listed. Notify your TA if anything is missing. Introduction We return to a circuit that you partly examined in the pre-lab for electricity IV. You were in a position to make predictions about the brightness of the identical bulbs in; Circuit 1 Lt느 乙 But you weren't asked to predict the effect of closing the switch on bulb A (although you built and observed the actual brightness of bulb A earlier in this lab).

Answer 1

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