An ideal solenoid has a length of 25 mm. If the windings are compressed so that the length is reduced to ½ of its original length how does the inductance change? ¼ of original to ½ of original twice the original

Q: What's the self-inductance of a solenoid with 317 loops wrapped around a cylinder. The cylinder has…

A: If L be the self-inductance, A be the area of cross=section. N be the number of turns, l be the…

Q: A linear transformer has L1=10H, L2=25H, and k=0.9.  What is the mutual inductance?

A: Given data:  The Inductance of first coil (L1) = 10 H, The Inductance of second coil (L2) = 25 H and…

Q: Consider a circuit shown below with the following parameters, battery voltage V=13 V, the resistors…

A: When the switch is immediately closed, the inductor will behave as a resistor of infinite resistance…

Q: Can a circuit element have both capacitance and inductance?

A: No, it is not possible that a circuit element has both capacitance and inductance.

Q: A 12H inductors carries a current of 2A. At what rate must the current be changed to produce a 60V…

A: The equation for the rate at which the current has to be changed can be obtained as

Q: How much of a change in current over time would produce a self-induced EMF of 6.00V in a  10µH…

A: self induced emf produced, ε=6.00 V Inductance in an inductor, L=10 μH=10×10-6 H=10-5H self…

Q: 4. A capacitor C is charged to a voltage V and connected to an inductor L as shown in the figure…

A: The voltage across the inductor is given by the formula, VL=LdIdt                           (1)…

Q: a) Calculate the self-inductance (in mH) of a 49.0 cm long, 10.0 cm diameter solenoid having 1000…

A: Length of the solenoid () = 49.0 cm = 0.49 mDiameter of the solenoid () = 10.0 cm = 0.1 mNumber of…

Q: Suppose you take a wire of diameter 1 mm and you wrap it around a pencil 200 times. When you remove…

A: 1.053 × 10-4   H

Q: A solenoid (length = 16.7 cm, radius = 1.3 cm) has a self inductance of 0.004 H. How many loops of…

A: Given that  length of the solenoid is  l=16.7 cm⇒l=16.7×10-2 m Radius is  r=1.3 cm⇒r=1.3×10-2 m Area…

Q: The current in an inductor decreases linearly from 2 mA to zero in 4 ms. Calculate the average emf…

A:

Q: What is the energy stored in the inductor shown in the figure after the switch has been closed for a…

A:

Q: A solenoid (length = 20.2 cm, radius = 3.1 cm) has a self inductance of 0.005 H. How many loops of…

A: Here we have to use basic formula.

Q: Suppose that you require a total inductance of 50 mH. You have available a 10 mH coil and a 22 mH…

A:

Q: The voltage across an inductor is proportional to the inductor and the derivative of the current…

A: As we know that,          Voltage across Inductor is given by :…

Q: A long solenoid is created with 33 turns, has a radius of 1.6 mm, and a length of 1.93 cm. -What is…

A:

Q: Show that the self-inductance per unit length of an infinite, straight, thin wire is infinite.

A: From Ampere’s law

Q: A 4-79 permalloy solenoid coil needs to produce a minimum inductance of 1.5 Wb/m2 . If the maximum…

A:

Q: If there is initially 12V across a 100 ohm resistor in an RL circuit (only a resistor in series with…

A: R-L Circuits: R-L circuits are the circuits in which there is one energy storing element (inductor)…

Q: a) Calculate the self-inductance (in mH) of a 54.0 cm long, 10.0 cm diameter solenoid having 1000…

A: Length of the solenoid () = 54.0 cm = 0.54 mDiameter of the solenoid () = 10.0 cm = 0.1 mNumber of…

Q: single loop is made around the center of a solenoid with a length of 20 m and a radius of 4 m. How…

A:

Q: Consider two small metal loops of radius r=a and r=b. Suppose the two loops are and are separated by…

A:

Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.