Choose the statements that are true/correct about circuits.  Choose the statements that are true/correct about circuits.    In circuits, the conventional flow of current is from the positive terminal to the negative terminal. For a series circuit, once a component (except the battery) was removed, all other components will no longer work. For a parallel circuit, once a component (except the battery) was removed, all other components will no longer work. In circuits, the electron flow is from the positive terminal to the negative terminal. The current passing through each component in a series circuit is the same. The voltage across each branch in a parallel circuit is less than the voltage of the battery.

Some strings of holiday lights are wired in series to save wiring costs. An old version utilized bulbs that break the electrical connection, like an open switch, when they burn out. If one such bulb burns out, what happens to the others? If such a string operates on 120 V and has 40 identical bulbs, what is the normal operating voltage of each? Newer versions use bulbs that short circuit, like a closed switch, when they burn out. If one such bulb burns out, what happens to the others? If such a string operates on 120 V and has 39 remaining identical bulbs, what is then the operating voltage of each?

Problem 2: Consider the circuit shown in the picture. It consists of three identical resistors, an ideal battery, and a switch S. Answer the following questions about what happens after you close the switch. R1 8. R3 Part (a) After closing switch S, the total resistance of the circuit: MultipleChoice : 1) Decreases 2) Increases 3) Stays the same. Part (b) After closing switch S, the voltage drop of resistor 2: MultipleChoice : 1) Decreases 2) Increases 3) Stays the same. Part (c) After closing switch S, current through resistor 2: MultipleChoice : 1) Decreases 2) Increases 3) Stays the same Part (d) After closing the switch S, current through resistor 1: MultipleChoice : 1) Increases 2) Stays the same 3) Decreases Part (e) After closing the switch S, voltage drop on resistor 1: MultipleChoice : 1) Increases 2) Decreases 3) Stays the same. Part (f) After closing the switch S, current through the battery: MultipleChoice : 1) Increases 2) Decreases 3) Stays the same Part (g) After closing…

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Two humans hang by both hands on a wire that can be connected to a constant voltage source. One teenager hangs from a position in which there is a resistor between their hands, and the other does not. The resistance of the resistor is much larger than that of the wire, which is very small. When the wire is connected to the battery, what does each person feel? Do they each experience the same result, or do they have different experiences, based on where they have chosen to hang onto the wire? Please include a diagram of the circuit!

If you reverse the direction of the voltage across a resistor (i.e., if the left side was 5V higher than the right side, change it so that now the right side is 5V higher than the left side), what will happen to the current running through that resistor? Group of answer choices The current will go to zero. The current will double. The current will also reverse direction.   How should you connect voltmeters or ammeters to a device you want to measure the voltage across or current running through (respectively)? Group of answer choices Both voltmeters and ammeters should be connected in series. Voltmeters should be connected in series, while ammeters should be connected in parallel. Voltmeters should be connected in parallel, while ammeters should be connected in series. Both voltmeters and ammeters should be connected in parallel.   Electrical devices which do not follow Ohm's law: Group of answer choices are known as non-ohmic devices. do not exist.

Two resistors R1 and R2 are in parallel with each other. Together they carry total current I. (a) Determine the current in each resistor. (b) Prove that this division of the total current I between the two resistors results in less power delivered to the combination than any other division. It is a general principle that current in a direct current circuit distributes itself so that the total power delivered to the circuit is a minimum.

You are given the job of evaluating potential power line systems. One system is designed to operate at V = 3000 V, and another would operate at V = 6500 V. Suppose the power line at the higher voltage would dissipate 3 % of the power that it carries. What percentage of the power would be dissipated in the low-voltage power line?

Consider the circuit shown in the figure. A short time after closing the switch, the charge on the capacitor is 90.0% of its initial charge. Assume the circuit has a time constant of 17.7 s. +Q (a) Calculate the time interval required (in s) for the capacitor to reach this charge. (b) If R = 220 k2, what is the value of C (in uF)? µF Need Help? Read It

In the figure R, = 6.19 2, R, = 18.6 N, and the ideal battery has emf ɛ = 11.1 V. (a) What is the magnitude of current i,? (b) How much energy is dissipated by all four resistors in 2.43 min? ww R i R9 (a) Number Units (b) Number Units