The heating coils in a hair dryer are 0.800 cm in diameter, have a combined length of 1.00 m, and a total of 405 turns. (a) What is their total self-inductance (in H) assuming they act like a single solenoid? H. (b) How much energy (in 3) is stored in them when 12.0 A flows? (c) What average emf (in mv) opposes shutting them off if this is done in 4.17 ms (one-fourth of a cycle for 60 Hz AC)? mv

Q: Calculate the self-inductance of a 40.0 cm long, 10.0 cm diameter solenoid having 1000 loops. (b)…

A: a) self inductance = L

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

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Q: A 1.35 H inductor in an RL circuit (with resistance 2.25 ) is initially carrying a current of 5.1 A.…

A:

Q: A solenoid with 485 turns has a length of 5.00 cm and a cross- sectional area of 3.00 X 10-⁹ m².…

A:

Q: ele R L (a) After the switch is first thrown to a (connecting the battery), what time interval…

A:

Q: (a) If an inductor carrying a 1.85 A current stores an energy of 0.250 mJ, what is its inductance?…

A:

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…

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A:

Q: A solenoid of radius 3.5 cm has 580 turns and a length of 25 cm. Find its inductance. ______mH…

A:

Q: A 5.00 Ω resistor, an 27.50 mH inductor, and a 13.80 V emf are connected in series. (a)Calculate…

A:

Q: In the circuit shown in Fig. , switch S1 has beenclosed for a long enough time so that the current…

A: Given circuit:

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

A: Concept used: The property due to which change in current of a circuit induces EMF in same circuit…

Q: Find the rate at which current must change through a solenoid to produce an emf of 75.0 mV if its…

A: When an AC current is passed through a solenoid a magnetic field is generated. This magnetic field…

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: has a self-inductance of 28 H. (a)    What induced emf opposes shutting it off when 90 A of current…

A:

Q: The 4.90 A current through a 1.50 H inductor is dissipated by a 2.06 2 resistor in a circuit like…

A: Let L be the inductance of the inductor, I denote the current through the circuit. The initial…

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.