When you touch your fingers (resistance 1000 Ω) to the terminals of a 6-V battery, show that the small current moving through your fingers is 0.006 A.

Q: How does the flow of current differ in a superconductor compared with the flow in ordinary…

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Q: How could you recognize that an electric current flowed in the circuit?

A: There are two main points by which the person can recognise that the current flowed in the circuit.…

Q: - A galvanometer coil has a resistance of 13 meter shows full scale deflection for a current of 4…

A: Here, we can convert the meter into ammeter  of range 0 to 6A as given follow;

Q: Why does a wire that carries electric current become hot?

A: Given:  A current carrying wire

Q: The current through the entire circuit, as shown in the figure below is: 2.0 N ww 2.0 2 #12 V 200 ww

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Q: Why does the filament of a lightbulb glow while the connecting wires do not?

A: The filament of a bulb is made of a metal with quite high resistance high melting point like…

Q: If a battery is labeled “6 volts”, what does that tell you about the battery?

A: battery is labeled “6 volts

Q: Why does the V/I ratio of an electric circuit indicate its ability to oppose electric current rather…

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Q: What quantity is defined as the amount of current flowing past a certain point in a given amount of…

A: Current is defined as the amount of the charge passed through a certain point in a given amount of…

Q: r has a 12-volt battery?

A: An electrochemical cell can be defined as an electrochemical device that can be charged with an…

Q: How do the currents 1₁, 12, and 13 compare?

A: GivenR1=20 ΩR2=25 ΩR3=60 Ω

Q: It takes 1 volt of electrical pressure to push 1 ampere of electrical current through 2 ohms of…

A: Voltage or emf is the electric pressure needed to move charge between two points. Voltage is given…

Q: Why is three wire system used in industries?

A: In the industries the heavy machineries are used which have the body made by iron.

Q: Which of the lightbulbs, the 25-W bulb or the 60-W bulb , has the higher resistance? Which draws…

A: The power used in lightbulbs is calculated by using the formula P=VI=V2R=Et  , where V is the…

Q: Why Does The Resistance Of A Conductor Increase With An Increase In Temperature?

A: The resistance of a conductor increases with an increase in temperature because the thermal velocity…

Q: A flashlight uses batteries that add up to 4.5 V and has a power output of 0.47 W.

A: Given :: Voltage, V = 4.5 V Output, P = 0.47 W

Q: Which of the following causes electrons in a wire to move as an electric current?

A: a) magnetic force between off switches

Q: 19. Kirchhoff s second law is based on the law of conservation of b. energy c. momentum d. mass a.…

A: 19). Kirchhoff's Second law refers to the voltage law which is based on energy conservation. It is…

Q: What is the effect of increasing/decreasing the resistance on the amount of current?

A: By ohm's law  We know that V=IR where V is voltage  I is current and R is resistance  R=VI

Q: If electrons flow very slowly through a circuit, why does it not take a noticeably long time for a…

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Q: Is a current carrying wire electrically charged because of the electrons moving in it?

A: Current carrying wire is not electrically charged. Because according to Kirchhoff’s first law, “the…

Q: Which layer refers to the electrical signals sent down a wire?

A: physical layer refers to the electrical signals sent down a wire

Q: A 1500-W heater is connected to a 120-V line. How much heat energy does it produce in 2.0 hours? 1.5…

A: Given data, Power (P)=1500 W Voltage (V)=120 V Time(t)=2.0 hours

Q: What is the advantage of transmitting power at high voltages?

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Q: What happens to resistance of a conductor as the conductor is made thicker?

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Q: Show that operating a 100-W lamp continuously for 1 week when the power utility rate is 15¢/kWh…

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Q: What is the total power used by a 4.5-A electric iron, a 0.9-A fan, and a 2.4-A refrigerator motor…

A: Given value--- i1 = 4.5 Amp. i2 = 0.9 Amp. i3 = 2.4 Amp. V = 120 V. We have to find--- total…

Q: Electrical resistance is measured in O volts O amperes O joules O watts none are correct

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Q: Will water flow more easily through a wide pipe or a narrow pipe? Will current flow more easily…

A: The water flows easily through a wide pipe, as it is wide so water easily goes thought it, whereas…

Q: Why is the tungsten used almost exclusively for filament of electric lamps?

A: In most of the electric bulbs and lamps tungsten is used as filament. The main reason is high…

Q: What determines the rate at which energy is delivered by a current?

A: The concept of power in electrical devices is the electrical energy per unit time transferred by an…

Q: How many electrons constitute a current of 1 Ampere in one second?

A: Given: The electric current is 1 A. The time interval is 1 s.

Q: Under what conditions would increasing a voltage have no effect on the current moving through a…

A: The relation between the voltage , resistance and current is given by Ohm's law as follows:V = IR…

Q: Why does lightning push electricity through air, but common batteries do not?

A: Air is an insulator until it reaches its breakdown point. After the breakdown voltage, air acts as a…

Q: The power rating of a particular instrument is 675 W when connected to a constant voltage source of…

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Q: Highly sensitive ammeters can measure currents as small as 10.0 fA.How many electrons per second…

A: Given: Current Flowing in the wire=10.0 fA =10.0x10-15 C/s Charge on an Electron 1e- =1.6x10-19C We…