1. Why is it not necessary to connect a voltage source (like a cell or battery) across a resistor when measuring resistance?

Q: What is a resistor and what it’s used  for

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Q: what are the four factors that affect the resistance of a substance?

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Q: What is the main purpose of a resistor in the circuit? What is the international unit for…

A: A resistor is an electrical component which is passive in nature having two terminals that is used…

Q: What is meant by power rating of a resistor

A: The power rating of a resistor  A resistor's power rating is the greatest amount of power that it…

Q: 1. Importance of studying earth resistance and resistivity.

A: Soil resistivity or earth resistivity is a measure of how much the soil resists or conducts electric…

Q: Explain in paragraph the relationships of resistance, voltage and current, and the distribution of…

A: Question is asking about relationships of resistance, voltage and current  also distribution of…

Q: TABLE OF RESISTIVITY: Fill out the table and compare the resistance of the following:

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Q: What are the factors that affect the value of electrical resistance?

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Q: What is the difference between resistivity and electrical resistance?

A: Electrical resistance - It is defined as the property of conductor which opposes the flow of…

Q: What will be length (in m) of a 10 ohm wire, when the resistivity of the wire is 0.1 ohms-m and the…

A: Given, A wire having Resistance, R= 10 ohm Resistivity of the wire, ρ=0.1 ohms-m  Diameter of the…

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

A: Given, A certain wire has a resistance R, we know that, R=ρlA R= Resistance ρ=resistivity of the…

Q: Does the tolerance affect the value of the resistor? How?

A: A Brief About Tolerance In Resistor:- Tolerance is defined as the maximum allowable variation in the…

Q: What is the range of values of the electrical resistance, in ohms, of the resistor with color bands:…

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Q: How does ohmmeter measurement compare with voltage measurement? Make it short and concise.

A: The comparison is as follows.

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

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Q: The 'skin effecť is a phenomenon experienced when current flows through a metal. Which two of the…

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Q: 31. What is the difference between electrical con- ductivity and resistivity?

A: we need to find the difference between electrical conductivity and resistivity.

Q: What is the 2nd band color of a three-band resistor having a resistance rating of 6.1 mega ohms?

A: The given resistance is 6.1 Mohm.

Q: How to calculate the resistance

A: In an electrical circuit, resistance is a measure of the resistance to current flow.

Q: What will be the resistance (in ohms) of a lamp rated at 220 V, 200 W ?

A: Given a lamp having, Rated Power, P = 200 W Rated Voltage, V = 220 V

Q: how does an increase in the resistance of a circuit resistor affect circuit current for a constant…

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Q: What is the maximum number of different resistance values obtained by using three resistors, if all…

A: Given: Three resistors are given. Required: Maximum number of different resistance values obtained…

Q: List 4 factors that affect the resistance in a circuit

A: Since the resistance depends on the parameters of the conductor. The expression of the resistance is…

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: Given a 50 Ω resistor with a tolerance of 10%, what is the minimum andmaximum voltage across the…

A: The tolerance of  the given resistance of 50 Ω is known, the maximum and the minimum values of the…

Q: finding the current to each resistance?

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Q: finding the voltage to each resistance?

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Q: Can you find equivalent resistance?

A: The given circuit can be modified as

Q: A voltmeter connected across a resistor always reads lessthan the actual voltage (i.e., when the…

A: Yes, it is true that the voltmeter connected across the resistor always reads lower than the actual…

Q: Look for voltage drops on each resistor and power on each resistor.  Provided pictures are fthe…

A: To find the voltages and currents

Q: What is the basic operation of an ohmmeter as it measures a resistor?

A: • Basically it is a electronic device whose main purpose is to measure the electrical resistance of…

Q: 2. Is there a linear relationship between current and voltage?

A: Ohm's Law- Ohm states that the current in a circuit is directly proposal to voltage and inversely…

Q: What is the actual resistance value of a resistor color coded Yellow, Violet, Red and Silver?

A: Given, A resistor color coded Yellow, Violet, Red and Silver

Q: 1. What will this voltmeter register when connected to a battery as shown (assume a battery voltage…

A: The explanation for given figure is as follows.

Q: What is the difference between an ammeter and a voltmeter? How they are connected in a circuit (draw…

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Q: explain the method for measure the unknown resistor

A: Types of Resistance Low resistance (< 1 ohm) Medium resistance (1 ohm to 0.1 Mohm) High…

Q: Five pieces of copper wire have the following description, rank the following resistance from lowest…

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Q: What are the relationships of resistance, voltage and current, and the distribution of voltages and…

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Q: What is the value of resistor?

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Q: If a length of AWG #24 wire has a resistance of 1 ohm, what is the resistance of the same length of…

A: Given: The two wires are: 24 AWG and 27 AWG Length of both wire is same. Resistance of 24 AWG wire…

Q: What will be the length of a 10 ohm wire, when the resistivity of the wire is 0.1 ohms-m and…

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Q: What is the the value of a resistor without considering its tolerance value percentage?

A: Resistors resist the  electrical flow. Each has a value that tells it to withstand the current flow.…

Q: . Part I of which article in the National Electrical Code provides general requirements for…

A: Correct option is ARTICLE 250

Q: What will be the resistance (in ohm) of a lamp rated at 220 V, 200 W ?

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Q: What is the resistance of a piece of copper wire that has a size of 2.5 mil-feet if 1 mil-foot has a…

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Q: 3. What is the nominal value and tolerance of a resistor that has the color code of Red, Red, Brown,…

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

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