1. How does resistance change if the length of the wire is increased? a. no change b. decreased c. increased d. cannot be determined

Q: A device operating at a potential difference of 1.5 volts draws a current of 0.20 ampere. How much…

A: Given Data: The potential difference is: V=1.5 V The current in the circuit is: I=0.20 A The time…

Q: 1. What is the difference between accuracy and precision?

A: As per guidelines, first question (#1) has been answered. Accuracy refers to the closeness of…

Q: The resistivity of a material is doubled when heated a certain amount. What happens to the…

A: The resistivity of a material doubles when heated to a certain temperature.Find:Change in resistance…

Q: Determine the following: 2 v+ A. Magnitude and direction of the current B. The potential differences…

A: Let us consider the circuit as drawn below:- (A)Suppose (I) be the magnitude of the current of the…

Q: 10. If the current in a wire is doubled, a) the current density is • A. doubled • B. halved • C.…

A: The current density of the wire is doubled, if the current flowing through the wire is doubled.…

Q: Which of the following energy transformations occurs when electric current passes through a…

A: Introduction: The current flow in the circuit is due to electrical energy, resistance is a passive…

Q: 5. Consider the circuit shown below, with four diffe: A

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Q: 3. In one of your Ohm's Law experiments you got the following results (see the table). In the graph…

A: The slope of the V-I graph slope=∆y∆x        =∆V∆I

Q: When the light bulb in your lamp no longer works, it is because the bulb has _____. a. run out of…

A: Among the given options, most general reason for the failure of light bulbs is a broken filament. A…

Q: 5. What is the total circuit resistance when resistive elements of 5, 10, 15, and 20 connected in…

A: Given:- R1=5 ΩR2= 10 ΩR3=15 ΩR4= 20 Ω The current in the circuit I = 7 A  Find:- 1) Total circuit…

Q: Kirchoff's Rules include Select one or more: O a. the junction rule about currents at branches in…

A: According to Ohm's law, the voltage drop across a circuit is defined as the product of the current…

Q: What is a circuit?

A: Answer : Correct option is (IV) A pathway that electrons flows in .It has a resistor , wire and a…

Q: High-voltage power lines are a familiar sight throughout the country. The aluminum wire used for…

A: For a given shape, the resistance depends on the material of which the object is composed. Different…

Q: 3. Two circuits present the same resistance to the current. In one circuit the battery causing the…

A: Answer:-  Given  Circuit one :-  Potential or Voltage (V) = 9.0 V  Current (I) = 3.0 A  Then…

Q: electrons

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Q: For the RC circuit shown, determine the charge on the plates of the capacitor after 40 x 10-seconds,…

A: Given: The time is 40×10-3 s.            The value of resistance is 20 Ω.            The value of…

Q: 1. Which of the following best describes the path of electric current? A. The negative terminal…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: resistance ofa second piece

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Q: A 502 resistor is wired in series with a 100Q resistor. The two are connected to a 10V battery pack.…

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Q: A solar panel is operated at its open-circuit voltage (operation voltage = open-circuit voltage = 48…

A: Given  open-circuit voltage = 48 volt   we have to find out the delivered power

Q: 2. WHAT SHOULD BE THE LENGTH AND CROSS-SECTIONAL AREA OF A WIRE FOR IT TO HAVE A RESISTANCE OF 100…

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Q: 2. Is it possible for a thick wire to have a higher resistance than a thin wire if the two are made…

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Q: 1. Resistors in parallel are additive.  True or False 2. A battery discharges by increasing its…

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Q: Which of the following statements is NOT true. a.Inverted charge distributions are possible in…

A: a. Inverted charge distributions are possible in storms with large liquid water contents. This…

Q: 0) Answer in terms of V a. Use Ohm's Law to calculate the current through the entire circuit. b.…

A: Given resistances, R1 =8 k ohm =8000 ohmR2= 6 k ohm = 6000 ohm voltage applied V = V voltcurrent in…

Q: Why is an electromotive force not a “force”? Justify your answer.

A: Electromotive force is the potential difference between the terminals of the cell when no current is…

Q: 9. A silver block (resistivity at 20°C of 1.59x10-8 Qm) is hooked t a power supply (not in the…

A: Given: resistivity ρ = 1.59*10-8 Ωm length l = 44cm = 0.44m width w = 13 cm =0.13 m height h = 21cm…

Q: 1. shortwave capacitor type electrodes are called: a. both air-space plates & pad electrodes b.…

A: As per guidelines, first question (#1) has been answered. Shortwave capacitor type electrodes are…

Q: 13. A 60-W light bulb operates on an effective ac voltage of 110 V. a. What is the effective current…

A: Electric Power is product of potential and current . P=VI So Current though light bulb is given by…

Q: 8. Given a set of capacitors:7 nF, 6 nF, 5 nF, 4 uF, 3 pF and 10 µF, solve the following problems:…

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Q: PA Pc.

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Q: 1. The resistance of a 200-W light bulb, which is operated by a 110-V dc source, is about a) 60 2 b.…

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Q: 11. A 10-ohm resistor is powered by a 5-V battery. What is the resulting current? D. 50 A A. 0.5 A…

A: Please Note: “Since you have asked multiple questions, we will solve the first question for you. If…

Q: A. Ampere 7. The circuit with higher resistance will allow less charge to flow. D. Not enough…

A: 7. The circuit with higher resistance will allow less charge to flow A. True. as we know the…

Q: 23. The average drift velocity is a ..... function of the applied electric field for small values of…

A: The average drift velocity is a linear function of the applied electric field for small values of…

Q: 10.a. To provide a useful purpose, electrical energy is most often converted to A. heat, chemical…

A: Solution: 10.a electrical energy is most often converted to B. heat, light, or mechanical energy.…

Q: 12. The resistance in a carbon filament lamp. B. doubled C. increases D. remains the same A.…

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Q: period 1. Current is measured in amperes (A). Which of the following units is equivalent to an…

A: 1) Ampere is the unit of current & current is the charge flowing per unit time. So option b-…

Q: Which wire has a bigger cross-sectional area? 7. Which wire allows greater current? A. 12-gauge…

A: two available copper wires are :A = 12 gauge copper wire having a length of 1 meterB = 18 gauge…

Q: 10. Determine the maximum number of 50 w/100 v light bulbs that can be connected together in…

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Q: 5. A typical lightning bolt has an average current of 3x10^44 lasting 0.2 s. How much charge is…

A: Given, Current I = 3 x 104 A Time t = 0.2 s   We know the expression for current is I=qtq=It

Q: 6. Given a DC circuit with one battery and a single resistor. If the total current in the circuit is…

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Q: 5. A lamp having a resistance of 10 N is con- nected across a 15-V battery. a. What is the current…

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Q: 5 V 1. For the circuit below, the total current drawn by the circuit is 0.40 A. a. What is the…

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.