Real materials only have so many electrons (with fixed charge) that are free to move through a circuit. How can the same object allow different amounts of current to flow through it? Use what you noticed about the electrons in the simulation to justify your answer. image of simulation below

Q: A 1.40-m-long metal bar is pulled to the right at a steady 5.9 m/s perpendicular to a uniform,…

A: Given: Length of the metal bar , I = 1.40 m  velocity,  V= 5.9 m/s Magnetic feild, b = 0.730 T…

Q: Hello, I am in need of help answering the image attached. I have tried giving my answer in terms of…

A: Consider the diagram below. Given information: Here, P2 is the power dissipated at resistance R2.

Q: A copper wire of radius a = 0.161 mm has an aluminum jacket of outer radius b = 0.218 mm. There is a…

A: Given: Radius of copper wire, a=0.161 mm=0.161×10-3 m outer radius of jacket, b=0.218 mm=0.218×10-3…

Q: A 8.5 V potential difference is applied between the ends of a 0.80-mm-diameter, 90-cm-long nichrome…

A:

Q: The terminals of a 0.70 V watch battery are connected by a 60.0-m-long gold wire with a diameter of…

A: Voltage ( V ) = 0.70 V Length of the wire ( L ) = 60 mDiameter of the wire ( d ) = 0.100 mm So ,…

Q: Refer to the values in the box for the circuit shown in Figure. You can assume an ideal battery…

A:

Q: 3.00 k2 E1 E2 R3 Ez 60.0 V 80.0 V 70.0 V R2 4.00 k2 2.00 k2 a R1

A:

Q: (b) The simple DC circuit in Figure 2.0 is powered by a 15 volts DC battery input-source (V₁) which…

A:

Q: Two resistors when connected in series to a 110-V line use one-fourth the power that is used when…

A:

Q: The circuit in the figure consists of switch S, a 4.60 V Ideal battery, a 25.0 M2 resistor, and an…

A: Given data: The emf of the battery is, V= 4.60 V The resistance of the resistor is, R= 25 MΩ The…

Q: Part A What is the blood resistivity if a 8.8 V potential difference causes a 220 μA current through…

A:

Q: rrent through the resistor a. Find the potential difference across the resistor a. Find the…

A:

Q: Two parallel wires separated by 1.00 cm each carry 34.0 A and experience a force of 0.600 N.  If one…

A: Current (I) = 34 A Seperation (d) = 1.00 cmForce (F) = 0.600 N

Q: A battery with an emf of 12.0 V shows a terminal voltage of 11.6 V when operating in a circuit with…

A: Given: The electromotive force, emf  (E) = 12.0 V Terminal voltage, when two bulb are connected in…

Q: The starter motor of a car engine draws a current of 140 A from the battery. The copper wire to the…

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: A 30.0 ohm resistor is connected in parallel to a 15.0 ohm resistor. These are joined in a series to…

A:

Q: 3.00 kN E1 E2 R3 E3 60.0 V 80.0 V 70.0 V R2 4.00 k2 2.00 k2 a R1

A:

Q: Part A The terminals of a 0.70 V watch battery are connected by a 90.0-m-long gold wire with a…

A: The value of resistivity of gold is: Calculate the area of the wire.

Q: Part A The starter motor of a car engine draws a current of 200 A from the battery. The copper wire…

A:

Q: Match the choices below to make correct statements, v Voltage is A. the rate at which electrons flow…

A: These simple concepts, definitions. Let's directly see the terms given

Q: A 16.0-m length of wire consists of 7.0 m of copper followed by 9.0 m of aluminum, both of diameter…

A:

Q: A current of 4.50 A flows in a conductor for 9.50 s. How many electrons pass a given point in the…

A: Given data:  Current (I) = 4.50 A Time (t) = 9.50 s Required: The number of electrons (n)

Q: A 0.250 kg lump of clay is dropped from a height of 1.45 m onto the floor. It sticks to the floor…

A: Given: The mass of the clay: m=0.250 kg Hight from where it is dropped: 1.45 m