Two light bulbs are designed for use at 120 V and are rated at 75W and 150 W. Which light bulb has the greater filament resistance?

Q: hms resistor? 2. Two light bulbs are connected in parallel, each having a resistance of 2 ohms.…

A: In series same current flows through resistors.  The equivalent resistance of given resistors are,…

Q: When the heated resistance of a 3.00-V flashlight is 3600, how much current flows through the bulb?…

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Q: order to triple its resistance, by how much would you have to increase the temperature of a piece of…

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Q: consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5…

A: Given data: Battery Voltage (V) = 6 V Wire Diameter (D) = 0.5 mm = 0.5×10-3 m Power (P) = 20 W…

Q: On three separate instances you connect each lightbulb to a battery with an emf of 12.00 V and an…

A: 1. The equation for the voltage drop across the lightbulb is given by V=ε-Ir Here, ε is the emf of…

Q: Three resistors with resistance 1 Ω, 5 Ω, and 10 Ω respectively, are connected in parallel with a 20…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 1. Two resistors with resistance values of 4.5 N and 2.3 N are connected in series or parallel…

A: Given:- The two resistors with resistance values of R1= 4.5 ohms and.R2=3 ohm V = 30 V  Resistance…

Q: 16- In Europe, 220 V is used instead of 120 V in America. If a 60 W European bulb is used in…

A: Voltage in europe= 220V Voltage in America= 120 V Power of bulb in Europe= 60w

Q: 2. An air conditioner draws 14.0 A at 220-V. The connecting cord is copper wire (resistivity of…

A: As you have not mentioned the number of questions to be solved. According to Bartleby Policy, we…

Q: A group of cells consisting of four rows connected in parallel, each row containing five cells…

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Q: Three identical resistors are connected in series to a battery. If the current of 12 A flows from…

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Q: 04a. Find the resistance of an electric toaster which draws a current of 6.62 A when plugged into a…

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Q: Answer the following Problems: 1. An 800 mA current is passing through a resistor. The voltage…

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Q: The resistance of the tungsten wire in a bulb is 20ohm when the bulb is not lit (T=20C) and 180ohm…

A: We know that relation between resistance and temperature is given by: R = R0*(1 + alpha*(T - T0))…

Q: Question 12 In order to perform an experiment on electric circuits, a student has to use a 6-ohm…

A: We have 9Ω resistances . We want 6Ω by several connection of 9Ω as in given option.

Q: 1. Which of the following is true about Ohm's law? a. It gives us the relationship among wire's…

A: According to ohm's law V = IR V = potential difference I = current R = Resistance

Q: 3. Determine the resistance of a 1-mile length of 12-gauge copper wire. Given: 1 mile = 1609 meters…

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Q: You have been handed an unknown battery. Using your multimeter, you determine that when a 5.00-Ω…

A: Given, Resistor R1 = 5 Ω Current I1 = 0.500 A Resistor R2 = 11 Ω Current I = 0.250 A   We know the…

Q: 9. What does it mean If material has a positive temperature coefficient? A. the resistance increases…

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Q: Q 12 A galvanometer with a resistance of 25 measures a maximum current of 10 mA 1 What is the amount…

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Q: 4. The resistance of a resistor changes with temperature; the equation is given as: R= a T^2 + bT+…

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Q: What is the purpose of a battery or a generator in a circuit?    a. Restricts the flow of…

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Q: 2. Some wire of cross-sectional area 1mm2 has a resistance of 20Q. Determine (a) the resistance of a…

A: Given data: R = 20 Ω A = 1 x 10^-6 m^2   Formula: R = ρ L /A Here,  R = resistance L = length…

Q: 17. The diagram shows two circuits for flashlights. Each flashlight has batteries totaling six…

A: Given: For flashlight 1- voltage V= 6 V Resistance, R=3 Ω   For flashlight 2-  voltage V= 6…

Q: Resistance and Resistivity• Explain the concept of resistivity.• Use resistivity to calculate the…

A: The resistivity of a material and the resistance of the object which is made up of that material are…

Q: 1. The load across a 40-V battery consists of a series combination of three resistances R1, R2, and…

A: 1) potential = V = 40 V R1=240 ohms R3=120 ohms

Q: 6. Defibrillator machines are used to deliver an electric shock to the human heart in order to…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 5. How does the resistance of two copper wires compare if wire X is twice as long as wire Y and has…

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Q: Two resistors, 57 and 72 Omega, are connected in series across a 30-V battery What is the current in…

A: Find net resistance using formula of series resistance. Then use , Ohm's law i.e V=IR for current in…

Q: 1. Identical lightbulbs are connected to identical batteries in three circuits. B (a) The voltage of…

A: a Since both light bulbs are identical , Resistance of both bulbs will be equal.            Given…

Q: 2. The circuit in the figure on the right shows a network of resistors connected in series and in…

A: PARALLEL COMBINATION In parallel combination of resistances say r1, r2.....rn The equivalent…

Q: 2.) What is the current supplied by the battery in the following circuit? What is the current…

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Q: 16. Fill in the blanks based on the electric resistance of a wire. a. Four characteristics of a wire…

A: a.  Four characteristics of a wire that affect its resistance are length, area of cross-section,…

Q: 24. An electric circuit is consisted of a 8 ohm resistor and a 4 ohm resistor connected in series…

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Q: Your cell phone typically consumes about  410 mW of power when you text a friend. If the phone is…

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Q: 34) A 9-V battery is hooked up to two resistors in series. One has a resistance of 52, and the other…

A: Given data :   Voltage of the battery (V) = 9V   Resistance,    R1 = 5 Ohm…

Q: 5. How many 10 k2 resistor should you connect in parallel to have a total resistance of 2.5 kQ when…

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Q: 1. A current of 10 mA passing through the human body causes sustained muscular contraction. For…

A: According to Ohm's Law, the potential difference in a circuit is related to the current flowing…

Q: 1. The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is…

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Q: 8. The rod in Figure is made of two materials. The figure is not drawn to scale. Each conductor has…

A: Both materials are in series and their resistivity is given. Hence, first apply the relation to…

Q: 14.

A: 13)when two objects rubbing together, the electrons will move to the either one from one those who…

Q: 1. Which of the following is true about Ohm's law? a. It gives us the relationship among wire's…

A: Answer: (1). a. It gives us the relationship among wire's resistance and the factors affecting it…

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.