‘X’ states that the direction of induced current in a circuit is such that it opposes the cause or the change which produces it. Identify X. a) Faraday’s law b) Lenz’s law c) Maxwell’s law d) Ampere’s law
Q: The switch in a R-L circuit is closed allowing current to flow from a 12 volt battery. If the…
A: In R-L circuit, The potential difference of the battery is V = 12 V. The resistance of the resistor…
Q: The resistance of wire is RS. If it is stretched to 'n' times to its original length its new…
A: Since more than one question is present in the image, the solution for the first one is provided…
Q: C.UP.032. [4269537] An engineer connects a resistor in parallel with an electric motor (a schematic…
A: Apply the Kirchhoff’s voltage law in the loop to determine the value of current.
Q: What is the SI unit of current? a) Coulomb (C) b) Ampere (A) c) Farad (F) d) Newton (N)
A: B
Q: 1 What is the physical meaning of the quantity-
A: From the Maxwell's equation the speed of light in free space ("c") can be obtained from two…
Q: 3. One way of expressing the rule for magnetic field lines around a current-carrying wire is that if…
A: Right Hand Palm Rule: This rule is used for identifying the direction of current and the magnetic…
Q: f the magnitude of the magnetic induction is less than that in a vaccum within a solid, so, this…
A: The diamagnetic materials have very weak magnetism. The magnitude of the its magnetic induction is…
Q: Write Faraday law. Explain mathematically (i.e. using equations not words) why it is not equivalent…
A: Faraday Law is given by ∮E→. dl=-∂∂t∫sB.ds∮E→. dl=-∫∂B∂tdswhere as in differential form∇×E→=-∂B→∂t…
Q: 1.) A conducting rod slides at 5.0 m/s on metal rails separated by 1.0 m. If a current of 30 mA is…
A: Solution:-Given thatspeed (v)=5 m/sdistance between rails (L)=1 mcurrent (I)=30 mA=0.03 AResitance…
Q: Q4 (a) There is a common phrase which states that “It’s not the voltage that kills, it’s current!”…
A: (a) To find the answer to 'what kills', let us consider a hypothetical situation in which current…
Q: Which of the following devices converts electric energy into mechanical energy?
A: The given statement is Device which converts electric energy into mechanical energy?
Q: QUESTION 14 We now know that spinning a magnet that is surrounded by wires, or spinning a wire that…
A: The given situation is a principle of a dynamo.
Q: Your friend overhears you talking about electromagnetic induction and says that it’s impossible…
A: What is electromagnetic induction?... Let's consider one conductor( say a coil) and magnet(say bar…
Q: Briefly describe Faraday's law and Lentz's law?
A: Faraday's law: 1. When a magnetic flux linked with a coil changes, an emf is induced in the coil. 2.…
Q: magnetic field between the rails?
A: Current i = 30mA = 30x10-3 A Resistance of the rod R = 0.36 ohm Separation between the rails l = 1m…
Q: Magnitude and direction of an induced emf may be obtained by applying a. Faraday's law, b. Ampere's…
A:
Q: 72. What will be the sign convention of the voltage if the direction of the current is opposite to…
A:
Q: 2. In the circuit shown in the figure, R1 = 20.0 N, R2 = 30.0 N, R3 = 40.0 N, L = 10.0 H and e = 100…
A: Applying Kirchhoff’s current law: i1=i2+i3 ∴ i2=i1-i3
Q: Which of the following rule is used to determine the direction of rotation of the coil of the D.C…
A: The direction of rotation of the coil in dc motor
Q: Which one of the following devices makes use of this principle, “current is induced in a coil when…
A: According to the Faraday's law of electromagnetic induction, when the magnetic flux linked with the…
Q: tic field between the
A: Given data: Rod's speed can be given as 5 m/s l=1 m I=30 mA R=0.36 ohm
Q: Validity of Ampere's Law. In which of the following systems does Ampere's law apply? Consider that a…
A: Ampere's law gives the relationship between the current and the magnetic field that is created by…
Q: Write down Faraday's law and then briefly explain the physics interpretation of the mathematical…
A:
Q: If you want to use a step-up transformer to convert 5V DC to 10V DC, what turn ratio would you need?…
A: Transformer work on the principal of mutual induction between two coil (primary and secondary).…
Q: Imagine that you go to leave a room with an overhead light. The light is on. You move the wall…
A: Let a light is working in a room. Once a person is about to leave the room, he / she tries to…
Q: The device used to convert electrical energy to mechanical energy O a. Optical fiber O b. Inductor…
A: An optical fibre transmits an electric signal into a light signal. Inductors convert electrical…
Q: A transformer has 200 turns on its primary and 12 turns on its secondary. If the input voltage is…
A: Given data: Np = 200 and Ns = 12 Vp = 2000 N Required: The output voltage (Vs)
Q: Explain how does does the voltmeter behave the way we see in this picture? Relate to the magnetic…
A: Given, Bar magnet, coil, voltmeter, bulb. The north pole of the bar magnet is brought into the…
Q: Which of the following rule is used to determine the direction of rotation of the coil of the D.C…
A: Right hand rule gives the direction of motion of coil.
Q: Which particular part of a the motor you can use to identify a "AC motor"? O a. Magnetic poles O b.…
A:
Q: A conductor is moving in a magnetic field. Which describes the charge distribution due to motional…
A: 1. In the above question and the figure below saying that , there is a conductor which is moving…
Q: The circuit shown is in a uniform magnetic field that is into the page. The current in the circuit…
A:
Q: 1. It is the measure of the ability of a material to maintain and establish a magnetic field. 2.…
A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…
Q: 2. A ferromagnetic structure shown in figure the dimensions are shown in the figure. The coils are…
A:
Q: magnetic circuit has a mean length of 0.80 m. a cross-sectional area of 0.06 m^2 and a relative…
A: Cross sectional area A= 0.06m2Length L = 0.80mrelative permeability r = 2167
Q: When does electromagnetic induction occur in a coil of wire? Select one: a. When there is a change…
A: When does electromagnetic induction occur in a coil of wire?
‘X’ states that the direction of induced current in a circuit is such that it opposes the cause or the change which produces it. Identify X.
a) Faraday’s law
b) Lenz’s law
c) Maxwell’s law
d) Ampere’s law
Step by step
Solved in 2 steps