DC voltmeter has a resistance of 20,000 ohms per volt. What is the resistance of the meter if the range selection switch is set on the 250 V range

Q: 7. How does the multimeter/voltmeter have to connect to the battery in order to provide an…

A: Multimeter/voltmeter are used to measurre the voltage across the elements such as batteries,…

Q: A potentiometer wire is 5 metres long and has a resistance of 10 ohms. It is series linked to a…

A: It is given that: L=5 mR=10 ΩRe=9942 ΩE=2 V

Q: Describe the relationship between the current and resistance

A:

Q: circuit has a resistance of 69 milli-ohms. If a voltmeter connected across its terminals reads 75 V,…

A:

Q: A certain wire has a resistance of R. The resistance of another wire identical with the first except…

A: The obstruction offered to the smooth flow of current is called resistance. The electrical element…

Q: several resistors of different resistances are connected in series to a voltage source of known…

A: Circuit arrangement will be

Q: Calculate the resistivity and conductivity of (10cm) length of a wire having a

A: The solution can be achieved as follows.

Q: An electric iron has a current draw of 12.5 A when connected to a 120-V source. What is the…

A: Given:--Current drawn = 12.5 A Supply Voltage = 120 V.

Q: 3) Calculate the resistance of a cross-sectional area A Od mm) and resistivity A(50*10 Fl the wire…

A: Given: The length of the wire is, l=100 m Cross sectional area, A=0.1 mm2=0.1×10-6 m2 Resistivity of…

Q: The voltages V1, V2, and V3 are measured with respect to the reference shown in the diagram. Find…

A: In this question,  Find the value of voltage V1 as shown in the circuit.  We know I= V/Req

Q: The question is how to produce hv about 150 kv. A) What if we have a dc battery with a voltage of 9…

A:

Q: The values of the resistance mentioned in the circuit are in ohms and the supply voltage is in…

A: In the circuit,  All the resistances are connect in the series and parallel.  Find the value of the…

Q: The resistance of 10m of a specially drawn wire is found to be 32.1 ohms. A coil wound with…

A: Resistance of a wire is directly proportional to the length and inversely proportional to the area…

Q: Explain the law of resistance. Explain the effects of temperature on resistance

A:

Q: The resistivity of a copper rod 50 ft. long and 0.25 inch in diameter is 1.76 microhm-cm at 20°

A: In this question we will find resistance of copper rod...

Q: If 24 resistances, each of value 72 ohms are connected in parallel, then the total resistance is?…

A:

Q: A linear resistance potentiometer is 50 mm long and is uniformly wound with wire having a resistance…

A: We have an potentiometer with, Length (l) = 50 mm Resistance of potentiometer = 10000 Ω and we have…

Q: What is/are your observations regarding the value of the equivalent resistance of a number of…

A: 1. when the resistors are connected in series then net resistance is increases  and  when the…

Q: In a resistance thermometer, a metal wire shows a resistance of 500 ohms at ice point and 550 ohms…

A: Given: R0°C=500 ΩR100°C=550 Ω

Q: Q. What is the difference between the effect of resistance on current and voltage drop through and…

A: Resistance is the ability of material to resist the current flowing through it. When resistance is…

Q: It is desired to wind a milliameter shunt using a no. 40 enameled copper wire with a resistance of…

A: To calculate the length of wire required to be used as a shunt

Q: slide wire potentiometer has 10 wires of 2 m each. With the help of a standard voltage source of…

A: Given, The slide wire potentiometer has 10 wires of 2 m each. So total length of slide wire, l =…

Q: How to find the temperature coefficient of resistance of a given

A: In this question we will write how to find temperature coefficient of resistance ...

Q: If the resistance of a certain wire is 4.068 ohms per 1000, what is the length of a piece of this…

A: If the resistance of a certain wire is 4.068 ohms per 1000 meter, what is the length of a piece if…

Q: A wire has a resistance 10 ohm. It is stretched by one tenth of the original length. Then itsi…

A: Given, a wire has a resistance 10 ohm. It is stretched by one tenth of the original length. Let,…

Q: A voltmeter has a resistance of 30 Q. What will be its reading, when it is connected across a cell…

A: Given, Voltmeter has resistance, R=30 Ω Cell emf, ε=2 V Internal resistance, r=10 Ω

Q: What are the differences between load resistance in a circuit and internal resistance in a battery?…

A: The internal resistance of the battery refers to the resistance that is offered by the battery, as…

Q: practical battery has an internal resistance of 0.2 ohm. If this practical battery provides a power…

A:

Q: The open-circuit voltage of a storage cell is 2.4 volts. The terminal voltage, measured when the…

A: In this question given The open-circuit voltage of a storage cell =2.4 volts. The terminal voltage,…

Q: What is the formula for temperature coefficient of resistance

A: Temperature coefficient of resistance(TCR) TCR is defined as the calculation of a relative change of…

Q: Determine the resistance of a bus bar of copper if the length is 75 feet long and the diameter is…

A: In this question, Determine the resistance of a bus bar of copper if the length is 75 feet long and…

Q: 1. The nominal resistance value of the a 4-band resistor is 470 k2 + 5%. a. What is the resistance…

A:

Q: The resistance of a 25-ohm resistor increases by 10 percent when its operating temperature increases…

A: The resistance 25-ohm resistor increases by 10 percent if temperature increases from 15 to 50°C.…

Q: The resistance of a 10 ft length of a resistor material having a cross section of 0.00204 in2is 4.1…

A: Given data: l1=10 ft=120 inchl2=12 ft=144 inchR1=4.1 ΩR2=7.1 Ω The expression for the resistance is…

Q: 9 am 30y LED From the circuit shown in the figure, what is the required resistance value and the…

A: We need to find out the value of resistor and power dissipation in resistor .

Q: The EMF of a battery is 4.2 volts and its internal resistance is 0.2 ohm. Its is connected to an…

A:

Q: 3) Calculate the reşistance of a cross-sectional area A Od mm) and resistivity oA(50× 10-%e Fl the…

A:

Q: Find the resistance of a piece of 8 AWG lead wire 600ft long. Consider the temperature to be 20…

A: Given parameters: Wire Guage - 8 AWG Length of wire - 600ft long Temperature - 20 degree Celcius…

Q: What is the difference in composition of a voltage source and a current source? How many current can…

A: All the circuit consists of voltage or current source. The nodes in electric circuits can be defined…

Q: A copper rod of 10m long has a diameter with one inch. If the resistivity of copper is 10.371 ohms…

A: Given Length = 10m  Diameter = 1 inch = 2.54 cm = 0.0254 m Radius = 0.0127 m

Q: 15-ft length of wire with a cross-sectional area of 127 cmils has a resistance of 8.74 ohms at 20…

A:

Q: What is the ideal resistance of a voltmeter? What is the ideal resistance of an ammeter? How do you…

A: In this question , we will find ideal resistance of voltmeter and ammeter ....

Q: Problem 13. Some copper wire has a resistance of 200 2 at 20°C. A current is passed through the wire…

A:

Q: At room temperature, what will be the value of thermal voltage? Show detailed calculations.

A: Write the expression thermal voltage as follows:

Q: A voltmeter rated 150 volts has an internal resistance of 10 k?. What resistance should be added in…

A:

Q: analysing an electrical circuit problem, when is it more suitable to apply KCL and when to apply…

A:

Q: How do you connect an ammeter to determine the current in a resistor? How do you connect a voltmeter…

A:

Q: In your own words describe a simple experiment to investigate Ohm's Law stating the procedure…

A: Title of experiment:Verification of Ohm's Law Equipment's Required: Battery…

Q: A wire has a resistance of 50 ohms. How much is dissipated in the wire if it carries a current of…

A:

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.