Which of these are TRUE: 1. Current is both scalar and vector quantity 2. The way we add current is the same process as we add vectors 3. Glass has higher resistivity than rubber 4. Insulators have higher resistivity than metals 5.The amount of current all throughout a circuit is just the same

Q: 9. Two resistors, R1 = 15 Q and R2 = 30 Q are connected parallel to a potential difference of 60 V.…

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Q: What is the difference between EMF and Potential Difference (PD) across a circuit? Complete the…

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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: 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: a) Answer all statement as shown in Table Q1(a) Table Q1(a) No Statement True or False i.…

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Q: 9. Two resistors, R1 = 15 Q and R2 = 30 Q are connected parallel to a potential difference of 60 V.…

A: Given that,Resistance, R1=15QR2=30QVoltage, V=60 V

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: 1. The temperature near the center of the Sun is thought to be about 15 million degrees Celsius.…

A: The given data are listed below with appropriate variables. Here, T denotes the temperature and q…

Q: 15.

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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: Which of the following best describes current? a. Amount of charge that passes through a wire's…

A: Electric current is considered as scalar quantity and given as rate of flow of charge .

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: 1.) a. What basic equation will you use to calculate how much charge is moved over a period of 10 s…

A: Current in the circuit ( I ) = 0.2 Amperetime period ( t ) = 10 sec

Q: electrons

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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: 1. How does resistance change if the length of the wire is increased? a. no change b. decreased c.…

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

Q: 1- A current of 2 ụA is discharged on a capacitor with a plate area of 100 cm² and a capacitance of…

A: Answer  20 V/s option(b)

Q: In a superconductor ( and sometimes on Star Trek) it is said “Resistance is Futile “. Interpret and…

A: A superconductor is a substance that reaches superconductivity, which is a state of matter in which…

Q: 1- Lay an aluminum strip 10 cm long, 2 cm wide and     and 3 mm thick. A current flows in the…

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Q: R7 R3 R5 R9 VT R2 Rg R10 R6 R4 R1 20V; Given: VT = 10; R6 = 20; R, = 2.5N; Rg = 6N; R9 = 12; R1 R2 =…

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Q: Two resistors are connected to each other in series. Which of the following is true? A. The…

A: Required  The correct statement.

Q: A certain brand of hot dog cooker applies a potential difference (120 V) to opposite ends of the hot…

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Q: When there is a difference in Electric Potential (voltage) in a closed circuit, current flows from…

A: There is nothing like flow of proton as protons doesn't flow.   So the only thing that can flow is…

Q: 2. In a lightning flash 2.5 x 10° J of energy are transferred and 1.25 x 10° C of charge in 0.20 s.…

A: Given, Energy E=2.5×109Jcharge Q=1.25×104Ctime t=0.20s

Q: A conductor differs from an insulator in that a conductor ... O ...does not have any neutrons to get…

A: To find :  The main difference between conductor and insulator.

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: 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: In one hour, what is the total charge which passed through a 60-watt light bulb carrying a current…

A: Given(s): Power of the bulb, P=60 W Current through the bulb, I=0.5 A Time, t=1 h=3600 s Require:…

Q: Q2) Magnitude of the drift velocity of conduction electrons in a copper wire is 7.84 x 104 m/s and…

A: Resistivity of copper wire, rho = 1.72×10^-8 Ohm.m Charge on electron, e = - 1.6 × 10^-19 C

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: The two 10-cm-long parallel wires in the figure below are separated by 5.0 mm. For what value of the…

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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: 40. According to the continuity of current, if we consider closed surface, then current out of the…

A: TRUE

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: Determine the average current between t = 0 and t = 2 seconds. . Find the aircraft's instantaneous…

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Q: A current of 1 A flows through a copper wire. Number of electrons which will pass a given point in…

A: Basic problem from electronics. Please have a good look

Q: a) How many electrons are contained in one coulomb of charge? b) When a resistor conducts electric…

A: part A:  how many electrons contained in one coulomb of charge ?part b:why would care about a…

Q: 7. Lightning discharges and lightning occur when charges are separated at different heights in the…

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Q: d) 6.25 x 1016 If 6 x 1017 electrons cross through an area per minute the electric current is [ d)…

A: given no of electrons that pass cross through an area in a minute is 6 x 1017 time t = 1 minute = 60…

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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Q: The equation for the change of position of a material point starting at xo = 0 m is given by x=…

A: [x] = [bt3]  [b] = [x/t3]  So unit of b is  m/s3 or ms-3

Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.