11) The generator in the figure uses a loop that rotates with a period T. Suppose the rotation rate is increased so that the loop is made to rotate twice as fast (note: the period is reduced by a factor of two). How will that affect the magnitude of the induced emf? Horseshoe magnet a) The magnitude of the induced emf will increase by a factor of two. b) The magnitude of the induced emf will decrease by a factor of four. Area = A c) The magnitude of the induced emf will increase by a factor of four. d) The magnitude of the induced emf will decrease by a factor of two. e) The magnitude of the induced emf will not change.

Q: A 21.7 turn conductive loop encloses an area of 0.44m2. At what constant rate should the magnetic…

A: we know that emf e=NadB/dt

Q: A generator produces 18.0 V when turning at 910 rev/min. What emf does it produce when turning at…

A:

Q: A coil with loops of area 0.0120 m^2 rotates at 60.0 Hz through a B field of 0. 125 T. How many…

A:

Q: A 760 pF capacitor is charged to 135 V and then quickly connected to a 175 mH inductor. Determine…

A: Write the given values with the suitable variables. C=760 pF=760×10-12 FV=135 VL=175 mH=175×10-3 H…

Q: A current of 4.25 A is going through a 7.5 mH inductor is switched off. It takes 8.09 ms for the…

A: Given: The current in the inductor is 4.25 A. The inductance of the inductor is 7.5 mH. The time…

Q: Find the induced emf in the coil as a function of time if f=10 Hz.

A:

Q: Problem 8: A rectangular coil with N = 1120 turns is moving to the right with a speed v = 7.4 m/s…

A:

Q: A simple AC generator consists of 20 coils of wire with an area of 1000cm2 and placed in a region…

A:

Q: Remembering that your transformer has twice as many turns in the secondary coil as in the primary…

A: transformer has twice as many turns in the secondary coil as in the primary coil, what is the ideal…

Q: A 60.0-Hz generator delivers an average power of 75 W to a single light bulb. When an induced…

A:

Q: A 48 turn conductive loop encloses an area of 71 m 2 At what constant rate should the magnetic field…

A: Given, Number of turns N = 48  Area A = 71m2 emf ε=3.58 Volts   We know the expression for induced…

Q: In the figure, a 150-turn coil of radius 2.8 cm and resistance 4.2 Q is coaxial with a solenoid of…

A:

Q: A small solenoid with a radius of 11 cm and 115 turns is placed inside a long solenoid (n = 550…

A: Small solenoid radius r = 11 cm = 0.11 m Number of turns of small solenoid N = 115  Long solenoid…

Q: A small solenoid with a radius of 12 cm and 100 turns is placed inside a long solenoid (n = 550…

A: Radius, r = 12 cm = 0.12 m Turns, N = 100 Turns per length, n = 550 turns/cm = 55000 turns/m didt =…

Q: conducting rod with length of 20cm is pulled along the a rotated U-shaped (see the figure)…

A:

Q: The current passing through a 0.40-H coil increases from 2.0 A to 10.0 A in 0.12 s. (a) Calculate…

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Q: A 2.00-H inductor carries a steady current of 0.500 A. When the switch in the circuit is opened, the…

A:

Q: If the current in a 140 mH coil changes steadily from 22.0 A to 10.0 A in 450 ms , what is the…

A: Given data, Inductance L=140 mH Current 22 A-10 A Time t=450 ms

Q: of the following statements are true? Choose all that apply. changing magnetic field will always…

A: There are statements given. We need to Choose true statements.

Q: As the coil of wire in the generator spins, an output potential difference is induced. Explain how…

A: Given that As the coil of wire in the generator spins, an output potential difference is induced. To…

Q: A 750-turn solenoid, 26 cm long, has a diameter of 2.5 cm. A 16-turn coil is wound tightly around…

A:

Q: If the current in a 160-mH coil changes steadily from 25.0A to 10.0A in 350 ms, what is the…

A:

Q: Two 52-turn coils are magnetically coupled so that a 7.12-A current in one coil produces a magnetic…

A:

Q: Determine the frequency of oscillation. Determine the peak value of the current.   Determine the…

A:

Q: Which of the following statements are true? Choose all that apply. A changing magnetic field will…

A: Choose true statements.

Q: What is the instantaneous value of the emf in the coil at t= s? Assume that the emf is 22 zero at t…

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.