What is the resistance (in Ω) of an electrical component if a current of 0.4 A passes through it on application of 12 V of potential difference across it? A) 4.8 B) 60 C) 9.6 D) 30

Q: Which is true of low resistance wires? A. The shorter a wire is, the lower resistance it will have.…

A: The answer is (A) Theshorter the wireis, lower resistance it will have.

Q: A battery that produces a voltage 6V is connected to a 10-N light bulb. Another 6V battery is…

A:

Q: The potential difference across a length of wire is increased.Which of the following does not…

A: Potential difference increases

Q: What is the resistance of a 0.100-kW light bulb designed to be used in a 120-V circuit dC?

A:

Q: Current is a measure of: amount of charge that moves past a point per unit time resistance to the…

A: As we know that, current at a point is given by the formula -              Current(i) =…

Q: A 9.0 Voltage battery is connected to a bulb whose resistance is 1.6 resistance. How many electrons…

A: V = 9 volts R = 1.6 ohm

Q: Someone watches TV on average 4 hours each day. The TV is connected to a 220 Volt voltage so that…

A:

Q: The potential energy possessed per unit of charge at any given location is referred to as the…

A: Given:  Potential energy

Q: What is the potential difference across an electrical motor if a current if 2 A flows through it for…

A: Given:   Current, I = 2A  Time, t = 2 minutes = 2 x 60 seconds = 120 seconds  Energy, E = 500 J

Q: A 8.4 A current is maintained in a simple circuit with a total resistance of 14.8 Ω.  How much…

A: Current, i=8.4AResistance,R=14.8ΩTime, t=33sEnergy  delivered is given  by      E=i2RT…

Q: A 30W bulb and a 60W bulb are supplied in series. a. The two bulbs draw the same current. b. The…

A: In a series circuit, the current through each of the elements is the same.

Q: 19. A 502 resistor is wired in parallel with a 1002 resistor. The two are connected to a 10V battery…

A:

Q: A silver wire 2 mm in diameter transfers a charge of 13-mC in 6 minutes. Silver contains 5.8 × 1028…

A:

Q: The newest generation of smartphone uses three different batteries connected in series…

A: When cells are linked in series to make a battery, the net potential difference between the…

Q: Of the following combination of units, the one that is not equal to the "watt" is O ampere-volt O…

A: The one is not equal to the "watt" is ohm squared /volt. Therefore, the correct option is C

Q: A silver wire 4 mm in diameter transfers a charge of 12-mC in 8 minutes. Silver contains 5.8 × 1028…

A:

Q: The figure is a graph of . 5 Current Voltage the current across a voltage as a function of the…

A: The above graph shows the current across a voltage as a function of the potential difference through…

Q: 4. In Question 3, what is the current in amperes if the voltage is halved and the resistance is…

A:

Q: "For a move through a resistance in the direction of the current, the change in potential is -iR, in…

A:

Q: A 33.0 V battery is connected in series with a(n) 2.5 Ohm resistor, a(n) 14.0 Ohm resistor and a(n)…

A:

Q: a current of 0.2 A good through an electric motor for 6 min  how many columbs of charge flow through…

A:

Q: The charges that flow through the wires in your home ____. a. are stored in the outlets at your home…

A: Given: The charges that flow through the wires in your home ____. Answer:- (e.)already exist in the…

Q: If the potential across a circuit is 40V and the current is 5,000 mA, what is the equivalent…

A:

Q: Which of the following is the linear charge density unit? O A) Ampere O B) Ampere / meter O C)…

A: Unit of Charge : Coulomb Unit of Length : m   Unit of linear charge density : [Charge]/[Length]

Q: A total of 7.9 x 10¹2 electrons move past a point in a wire every 1.45 s. What term best describes…

A:

Q: A long, thin aluminum wire of thickness 0.75 mm is connected to a 4.5 Volt battery. The power…

A: Power, P=260W Voltage, V=4.5 Volts Diameter of wire, d=0.75mm=0.00075m Radius of wire,…

Q: A high voltage battery can ____. a. do a lot of work on each charge it encounters b. do a lot of…

A: A high voltage means potential energy will be very high thus it can do a lot of work across its…

Q: Two Iron wires with the same cross-sectional area are found in a box. The first has a resistance of…

A:

Q: A 5.1 A current is set up in a circuit for 4.7 min by a rechargeable battery with a 6.0 V emf. By…

A: Given:- Current (I)=5.1 A Time(T) =4.7 min emf(V)=6.0 V Find:- How much chemical energy of the…

Q: A car battery that has 13.8 V moves 58, 000 C of charge. What is the energy output of the battery? b…

A: Given  Vo = 13.8 V   q = 58,000 C  Energy output of the battery     E = q×V

Q: The different connectors in a power supply also provide different a. Watt-ages b. Voltage c. Current…

A: The different connectors in a power supply also provide different resistance.

Q: If the voltage across a fixed resistance is doubled, what happens to the current?  a. It doubles. b.…

A: Given: The voltage is doubled.

Q: ewspaper articles often have statements such as "10000 volts of electricity surged through the…

A:

Q: A 74.1-Ω resistor is connected in parallel with a 128.0-Ω resistor. This parallel group is connected…

A: when 2 resistors are connected in parallel equivalent of two resistors is given by Req =…

Q: R1 V, R2 R3 Figure A3 6. In the circuit of Figure A3, a decrease in R3 leads to a decrease of A.…

A:

Q: A(n). is equal to the amount of energy that a 1,000-W device transforms in 3,600 s. battery O…

A: Given to find which of the given options is equal to the amount of energy that a 1000W device…

Q: A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the…

A: According to question we need to find--- Determine the power consumed by (a) the blow-dryer and (b)…

Q: Which one of the following quantities is correctly matched to its unit? Energy - kW O Power - kW-h O…

A: Energy - kW (it means kilo watt) power-kW. h (kilo watt hour) Resistance - V/C (Volts per Columb)…

Q: In a .. . ., we can store electrical energy as potential energy in an electric field. Which of the…

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Q: Two resistors (shown on the graph) are connected in parallel. Calculate their equivalent resistance.…

A:

Q: what does resistance not depend on

A: Resistance of a conductor depends on many properties  such as its shape , size and then material of…

Q: Too much current can be a bad thing for humans too. When too much current flows through the human…

A: The amount of current that our body can withstand is less than 0.01 amperes resistance given by our…

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.