a. Explain what is meant by the resistance of a resistor b. Explain why the resistance of a metal increases when its temperature increases  c. State 2 other factors which determine the resistance of a stated length of wire

Q: 2. Lacking the required 4 N resistor R in the circuit diagram below, you decide to make your own.…

A: Given: The required resistance is 4 ohms. The diameter is 0.3 mm. The resistivity is 1.414×10-6 Ω.m.

Q: Q1.Nichrome wire has resistivity p=1.5*10-6 (Q.m) calculate the following a. The resistance per unit…

A: Resistivity of Nichrome wire is p = 1.5 x 10-6 ohm-m Radius of the wire is r = 0.321 mm Potential…

Q: What is the electrical resistance of a copper wi

A: Givenr=0.8 mm=0.8×10-3 mL=2 mρ=1.72×10-8 Ωm

Q: A current flows through a wire and the resulting drift velocity of the electrons is 'v'. Calculate…

A:

Q: 2. An aluminum (p=2.7x10-2m) wire has a cross-sectional area of 5.1x107 m?. A. If the wire is…

A: (A) Let A be the cross-sectional area of the aluminium wire. Write the expression for the circular…

Q: A conducting wire with circular cross-sectional area A and length L has resistance R. If the radius…

A:

Q: Five resistors are combined as shown. Suppose R1 = 4.80 Q and R2 = 6.40 Q. What is the equivalent…

A:

Q: Which, if any, of these statements are true? (More than one may be true.) Explain your choice or…

A: A battery is an electro-chemical device which converts the chemical energy into usable electrical…

Q: Three resistors of 25 N, 30 N and an unknown resistance R are connected in parallel and the…

A:

Q: Resistors v.B What is relationship between the resistances of objects A and B? RA = RB А: RA = 0.5 x…

A: The given values are, rA=RrB=2R

Q: image

A: Solution 1 One object must be at a higher electric potential than the other. Like heat which only…

Q: Suppose the resistance of a wire is R Ω. What will be the resistance of another wire of the same…

A: The resistance is given by,  R=ρLAR=ρLπr2

Q: Can you answer problem 1? Can you also provide a short explanation for the answer you chose?

A: Here, Rp is the effective resistance of two parallel resistors.

Q: 1. Resistance in metal wire arises because: a. The electrons are moving randomly b. There are…

A: 1. When electrons move through the metal wire some electrons collide with atoms, other electrons, or…

Q: 3. The resistance of a copper wire with circular cross section of radius a and length L is R. If we…

A:

Q: Series-Parallel Connection of Resistors A. Answer the following: 1. Two resistors of differing…

A:

Q: Jairo says that you can increase the resistance of a copper wire by hammering the wire to make it…

A: Resistance of a wire is given by, By hammering wire and making it narrower and longer, length (L)…

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

A: Solution:We want a 6 Ω resistance using a large amount of 9 Ω resistance.Connecting three 9Ω…

Q: The value of each resistor is ranked from the most to the least as follows: R1, R2, R3. R V A. Which…

A: The answer is given below

Q: The figure gives the electric potential V(x) along a copper wire carrying uniform current, from a…

A:

Q: Imagine a person with feet in contact with the ground and another part of the body in contact with a…

A: GivenVoltage of source, V=240 VResistanceRs of skin grater than 500 k ohmRsistance of path through…

Q: Light bulb A is rated at 60 W and light bulb B is rated at 100 W .Both are designed to operate at…

A:

Q: 3. Given three color coded resistors; R₁ (Black, Orange, Green, Gold), R₂(Grey, Black, Orange,…

A:

Q: 4. Wire C and wire D are made from different materials and have length L = Lp-1.0 m (Figure 4). The…

A:

Q: X, Y, its the currents sc

A:

Q: Compare and contrast the way of computing quantities in resistors connected in series vs resistors…

A: The series connection of the resistors:   If resistors R1, R2, R3, . . . ., Rn are connected in…

Q: 6. If the potential difference across a resistor is doubled, the resistance is also doubled. A.True…

A:

Q: 2. A 6-V battery is connected to three resistors that have resistance values of 4 ohms, 5 ohms and 6…

A: The equivalent resistance in the series combination is  R = R' + R''+ R'''

Q: James states that the resistance of a copper wire can be increased making it narrower and longer.…

A: Resistance of conductor depends on temperature. Resistance of conductor increases with temperature…

Q: A 500 ohms resistor has 0.5A  current  passes through it.  The power loss of the resistor is…

A:

Q: greater power dissipation in the wire , he should : a. Make the wire longer b. Increase the…

A: Given : Jimmy has a battery connected across a piece of conducting wire.  To tell how to increase…

Q: Four resistors (3Ω, 4Ω, 6Ω, and 8Ω) are connected in parallel across a 9-Volt battery. How much is…

A:

Q: For the circuit, find the following: a. Equivalent Resistance b. Total Current c. Current through…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What are the possible reasons why we would duse multiple resistors iinstead of just one resistor…

A: (I) First reason to use combination of resistor instead of equivalent resistor is unavailability of…

Q: Given the circuit shown in figure below: a. Determine all unknown currents b. Determine the…

A:

Q: The figure below shows five resistors and two batteries connected in a circuit. What are the…

A:

Q: Four resistors are in series with a battery. You see that the resistors are identical. If the…

A:

Q: A length of copper wire has resistance of 0.172 Ω and a cross-sectional area of 7.85 x 10^(-5) m^2.…

A: Given that Resistance(R)=0.172 Ω cross-sectional area( A)=7.85 x 10^(-5) m^2 resistivity of copper(…