Consider the RL direct current circuit shown. The circuit contains R = 4.0 Ω,  L = 10 mH, &  ε = 12 V. The circuit is charging. (a) Determine the time constant for the circuit? (b) What is the maximum current in the circuit? (c) What is the current one time constant (t = τ )?

Q: Problem 2. A linear machine has the following characteristics: magnetic flux density B = 0.5 T into…

A: Given, magnetic flux density is, B=0.5T --into the page, length of bad, L=0.5m external resistance,…

Q: (a) What is the emf across the inductor immediately after the switch is opened?  V (b) When does…

A: Detailed solution is given below:     Please UPVOTE dear sir

Q: Consider a long, horizontal Large Wire with current of 10A flowing through it. We want to levitate a…

A: A) As we know that the direction of magnetic field above a current carrying wire in which current…

Q: Magnetic resonance imaging instruments use very large magnets that consist of many turns of…

A: In magnetic induction, emf=LdIdt This emf is equivalent to voltage applied, V=LdIdt Change in…

Q: After being closed for a long time, the switch S in the circuit shown in the figure below is thrown…

A: The circuit diagram is shown below.

Q: Find an expression for the current in this circuit (including direction) given the following…

A: B→ = 40cos30πt-10π3yk^ mWb/m2B→ = 40×10-3cos30πt-10π3yk^ Wb/m2

Q: A segment of wire 7.8 cm long is moving at a velocity of 5.99 m/s toward a parallel (much longer)…

A:

Q: Suppose that the light bulb in Figure 22.4b is a 60.0-W bulb with a resistance of 287 Ω. The…

A:

Q: The magnetic field shown in Figure P20.63 has a uniformmagnitude of 25.0 mT directed into the paper.…

A: Part A:

Q: Problem 1: Two long thin parallel wires are 0.1 m apart and each wire carries a current of 12 A. The…

A: The magnetic field at point P B=−(1.4×10−5T)i−(4.8×10−5T)j​.Explanation:

Q: It is desired to construct a solenoid that will have a resistance of 4.80 N (at 20°C) and produce a…

A: Resistance = 4.8 ohm resistivity= 1.7 x 10-8 ohm.m radius of wire= 0.25 mm Current =3.9 A…

Q: It is desired to construct a solenoid that will have a resistance of 5.75 (at 20°C) and produce a…

A: Resistance = 5.75 Temperature = 200C Magnetic field = Current = 4.85 ADiameter of wire= 0.500…

Q: The current in a long solenoid of radius 2 cm and 19 turns/cm is varied with time at a rate of 5…

A: Given data r=2 cmn=19/cmdIdt=5 A/s Here, r is the radius of the solenoid, n is the number if turns…

Q: The switch in the circuit shown in the figure has been open for a long time. The resistors in the…

A:

Q: A solenoid consists of 4200 turns of copper wire. The wire has a diameter of 0.200 mm. The solenoid…

A: -

Q: The current to an inductor with 25 windings and a cross sectional area of .025m^ 2 is increased such…

A:

Q: In the accompanying figure, the rails, connecting end piece, and rod all have a resistance per unit…

A: Given: Resistance per unit length of all connecting end piece and rod is 2.0 Ω/cm The rod moves to…

Q: A portion of a long, cylindrical coaxial cable is shown in the figure below. An electrical current I…

A:

Q: You are camping in the wilderness. After a few days, you are horrified to discover that you did not…

A: Given data: Angular speed =2.5 rev/sec ε0=55 v w0=1600 rev/min ε=8 v Find: Average back emf of the…

Q: Imagine a conductor on rails that completes the circuit below. There is also a magnetic field with…

A: Induced emf=lVB So i=E/R And recall P=iV

Q: The capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s.…

A:

Q: In the circuit, V is a 78.6 V battery, C is a 6.27 µC capacitor, L is a 8.52 mH coil (with no…

A: Given that: V=78.6 VR1=R3=R4=7.21 ΩR2=7.37 ΩL=8.52 mHC=6.27 μF

Q: A jet develops a 0.25 volt potential difference between the tips of its wings when flying above a…

A:

Q: The bolt of lightning depicted in the figure passes 200 m from a 90 turn coil oriented as shown. If…

A:

Q: For the circuit in the figure, at t = 0 the switch S is closed with the capacitor uncharged. If C =…

A:

Q: The capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s.…

A: The objective of the question is to find the charge on the capacitor at a certain time after the…

Q: The rod shown below moves to the right on essentially zero-resistance rails at a speed of v = 3.0…

A: Given data The speed of the rails is v = 3 m/s. The magnetic field is given as B = 0.75 T. The…

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.