A circuit has a battory with an oloctromotivo force of 10.0 V and a negligible intornal resistance connectod in sorios with a resistance R. The powor dlissipatod by tho rosistance is P. If a socond identical rosistance is connected in sorios with the first rosistanco, tha power dissipatod by the first rosistance in this now circuit bocomes: allie Soloct onc: O a. P/4. O b. 2P. Oc. 4P. Od. P/2. o. P.
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- A resistanca R dissipatos a powor P when connectod in sorios with a battory with an oloctromotivo forca of 15.0 V and a nogligible intarnal rosistance. If a second rosistance 2R is addod in sorios with tho first, the powor dissipatod by the sccond resistance in this now circuit is: Soloct one: O a. P/2 O b. 2P/9. O c. 4P/9. O d. 2P. O o. 9P/4.When 3000N boat is moving at 3m/s, the motor conks out. How much farther will the boat glide, assuming its resistance to motion is 30V N where V is in m/s?The current i in a circuit is inverselyproportional to its resistance Z measured in ohms.Suppose that when the current in a circuit is 30 amperes, theresistance is 8 ohms. Find the current in the same circuitwhen the resistance is 10 ohms.
- at gook The emf of themacouple changee sing A the neutial temberalue is ato8. LOhat es the tomperaliue of could junclion ?.d complete it by drawing the connecting wires that are needed to the multimeter. Li Fig ge UPN acroSs a- What m L2 open. What is t Li positive 0.50 If the tw the volta Fig.10 of figure 8, th ates: 10- The vo The ammeter indicates 0.5 A. the cir the vol of the ammeter AL b- What is the current carried by L2? C- What is then the current sent by the generator? a- Draw again the circuit of figure 11, and draw the connecting wires needed to measure the voltage across the lamp using the multimeter. M Fi N e figure 9, t ces l1=750 m A2 indicate would t e? Justify yo Fig.11 b- If the voltage across the dry cell is constant at 9V. what would the voltmeter indicate when the switch is: open? closed? Wharcuite, Cuments, and vontged Learning Goal: To detemine the voltage and currants for eloments in an eloctric circut. An electric dirouit contains circut dements connected togather in by conductors. Some typical elements in eloctric circuits include resistors, capacitors, inductors, and voltage sources. The behavior of cach eiement can be described in tems of the oument passing through the element and the voltage across the element. dge) Elactric cument is the time rate of fow of clectric charge in specified direction. Lat g(t) represent the net charge that has flowed through a surtace in a diraut diement or conductor. The oument is the time rate of change of the nat charge, 1(1) - Positive charge moving in the chosen direction and negative charge moving apposite the chosen direction are both positive ouments. Positive charge moving opposite the chosen direction and negative charge moving in the chosen direction are both nogative cuments. The units of charge are coulombs, C, and the…
- Resislance, ef the uoltmelei is lo000 ohm to increcte songe of uoltmeler fuom 25V lo 250 V, HeSie lance connected in setes is- O 990 ohm O 999à ohm ☺ gooo0 ohm d) 90 ohm.Calculate the yalue of resgtance needed to convent a moing coil galvanometer of 6052 into an ammetez, which full gcale deflection tor a current of 50 mA and into roltmeter of range 0-50 V ? givesEach of the resistors in thefollowing circuit has aresistance of 30 Ohms. What isthe equivalent resistance of thiscircuit, and the total currentflowing through the circuit, ifthe battery has a potentialdifference of 8 Volts?
- (Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . If AC in a circuit can be thought of as a wave, which kind is it, longitudinal or transverse?(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . A simple electric circuit consists of a constant-voltage power supply and a variable resistor. What effect does reducing the resistance have on the current in the circuit and on the power output of the power supply?Check Your Understanding In considering the following schematic and the power supplied and consumed by a circuit, will a voltage source always provide power to the circuit, or can a voltage source consume power?