Describe this voltmeter and the dials?

Q: Which of the following represents the unit ampere? [A] Kg/metre [B] coulomb/metre [C] coulomb/second…

A: The ampere is the unit of current.   One ampere of current corresponds to one coulomb of charge…

Q: why do we use oscilloscope instead of a voltmeter or a multimeter?

A: Required : why do we use oscilloscope instead of a voltmeter or a multimeter.

Q: When a voltmeter is connected across the terminals of a resistor, what usually happens to the…

A: A voltmeter is an instrument that is used to measure the electric potential difference between two…

Q: What do you think will happen when they switches are turned closed.

A: Required : What will happen when the switches are closed.

Q: Your friend says that an amp (or ampere) and a volt really measure the same thing and the two terms…

A: No, the ampere and voltage do not measure the same thing. So they are not the same thing. Voltage is…

Q: when you use lights from battery does it have decrease the same voltage every hour or it depends

A:

Q: Why is fuse wire fitted in porcelain casing?

A: During short circuit, the current in the circuit increases more than the maximum limit. As a result,…

Q: Does a battery produce dc or ac? Does the generator at a power station produce dc or ac?

A: A battery produces a DC as its terminal always have the same sign.

Q: What are three ways in which voltage can be induced in a wire?

A: According to the Faradays law, inducing a voltage into a conductor can be done by either passing it…

Q: (3) What happens when the switch is closed in the figure shown below? (answer: bulb 1 goes…

A: (1) What happens when the switch is closed in the figure below. (2) What happens when the switch is…

Q: Consider the following circuits: Circuit 1: A 10 v battery in series with two 10 resistors Circuit…

A: When a potential difference is applied across resistances connected in series, the resistances have…

Q: For the circuit shown: 1. Calculate the values of ammeters and voltmeters? 2. Which one of the…

A: First calculate equivalent resistance  then, Find Net current using V = I*R

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: How does stored energy vary with voltage

A: We know that the stored energy  U = 1/2 CV2 So the energy  is proportional  to V2 of voltage.

Q: What is the definition of Ampere's law? And when can we use it?

A: Ampere's Law Ampere's law states that "The magnetic field created by an electric current is…

Q: A motor and a buzzer in a circuit are using the same amount of voltage but different amounts of…

A: The potential drop across each resistor in parallel is the same.

Q: How are bulbs and or LED lights in your house connected? Why is this so?

A:

Q: What exactly is a socket?

A: A socket is a device that allows electrical equipment to connect with the electrical power supply…

Q: 7. In a parallel circuit, each circuit element has the same 8. In a series circuit, the largest…

A: 7.In  all parallel devices ,the voltage is the same since we have wired them together with wires…

Q: The ammeter in reads 5.0 A. 9.0 V +||+ ww 2.00 ww 3.0 Ω ww 1.02 + A E 1₁ 1₂

A:

Q: How is alternating current (AC) different from direct current (DC) in the context of power systems,…

A: Alternating Current (AC) and Direct Current (DC) are two different forms of electrical power, in…

Q: How to charge an electroscope by contact and induction? Thanks!

A:

Q: State and explain six practical applications of eddy currents in our daily life.

A: what is Eddy current:                     An eddy current is a  current set up in a conductor in…

Q: What physical information allows you to conclude that the lights are connected in series or…

A: In the electric circuit, there are two types of connection series and parallel. Series Connection:…

Q: Calculate the power (given in Watts to three decimal places) that will be dissipated in a 676…

A: Electrical circuit problem.

Q: What changes occur in the line current when more devices are introduced in a series circuit? In a…

A: Write the expression for the Ohm’s law.

Q: What is an electric motor? State its principle.

A: an electric motor is a machine which converts electrical energy to mechanical energy . it is based…

Q: Identify and discuss the function of each part. Commutated Capacitor Tachometer Stroboscope…

A: Identify and discuss the function of each part. Commutated Capacitor Tachometer Stroboscope…

Q: What is the purpose of a switch?

A: Switch is an electrical component by which we can physically connect or disconnect the conducting…

Q: What is your explanation for the fact that the current induced in the lamps does not follow Ohm’s…

A: According to Ohm's law  the voltage across a conductor is directly proportional to the current…

Q: State and explain five practical applications of eddy currents

A: Solution: Application of the eddy current

Q: Explain the working of the disappearing filament pyrometer.

A: The disappearing filament pyrometer is a kind of optical pyrometer which measures the temperature of…