A transformer has 200 turns on the primary and 20 turns on the secondary. The primary is connected to a direct current source of 100 millivolts. The voltage in the secondary coil will be 20 millivolts. zero. 1000 millivolts. 4000 millivolts. 10 millivolts.

Q: A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much…

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Q: Calculate the peak voltage of a generator that rotates its 1000-turn, 0.100 m diameter coil at 5000…

A: Given that the value of magnetic field and given the number of turns and diameter of coil and speed…

Q: A variable magnetic field is perpendicular to a 195-turn coil of area 0.305 m?. The magnetic field…

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Q: At what velocity (in revolutions per minute) will the peak voltage of a generator be 490 V, if its…

A: Peak voltage , εmax = 490 V Number of turns , N = 490  Diameter , D = 8 cm  Radius , R = 4 cm = 0.04…

Q: 18) A bar magnet is pushed through a coil of wire of cross-sectional area 0.020 m² as shown in the…

A: Given : Area (A) = 0.020 m2 Number of turns (N) = 7 Rate of change of strength of magnetic field :…

Q: A toroidal coil has a mean radius of 16 cm and a cross-sectional area of 0.25 cm2 ; it is wound…

A: Given Data: The radius of a coil is, R=16 cm The cross-sectional area of a coil is, A=0.25 cm2 The…

Q: Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once converted…

A: The equation for the current in terms of power and voltage is,

Q: A transformer is to be used to step up voltage from an alternating current source from 120 V to 1800…

A: Given data The primary alternating voltage source is V1 = 120 V. The secondary alternating voltage…

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: An oscillating LC circuit consisting of a 6.0 nF capacitor and a 2.0 mH coil has a maximum voltage…

A: The given data are:

Q: A 10-V, 1.0-A dc current is run through a step-up transformer that has 10 turns on the input side…

A: Transformer is device which works in AC source

Q: 4. A 100KVA, 4000V/200V, 50HZ single-phase transformer has 100 secondary turns. Determine: i. The…

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Q: How fast (in rad/s) must a 92-turn coil spin in a 0.039 T field to create a peak voltage of 8.3 V?…

A: Given number of turns = N = 92 strength of magnetic field = B = 0.039 T peak voltage = Vmax = 8.3 V…

Q: An induction stove heats a pot with a coil carrying an alternating current located beneath the pot…

A: According to Faraday’s law of induction, the effect of self-induction will be on the device itself.…

Q: An emf of 17.0 mV is induced in a 480-turn coil when the current is changing at the rate of 10.0…

A: The self induced emf in a RL circuit is defined as ε=L∆I∆t or we ca write  L=ε∆I∆t In this question,…

Q: 25. What is the output potential dif- ference from the secondary coil of the transformer on the…

A: The potential difference around the coil is directly proportional to the no of turns. And so the…

Q: following transformer circuit VSource=12.0volts, RSource=4, the number of turn on the left-handside…

A: Vs /Vp =Ns / Np

Q: An electric power station that operates at 15 kV and uses a 20:1 step-up ideal transformer is…

A: The output voltage is,

Q: What is the type of core material of the transformer?  a. Silicon steel b. Iron c. Copper d.…

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

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Q: In the figure, a 140-turn coil of radius 0.019 m and resistance 6.5 2 is coaxial with a solenoid of…

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Q: You have a spool of copper wire 4.98 mm in diameter and a power supply. You decide to wrap the wire…

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Q: a strong permanent magnet is plunged into a coil and left in the coil. What is the effect produced…

A: When a strong magnet ? is plunged into a coil, then Due to change in magetic field current is…

Q: An alternating voltage given as; V=100 √2 sin100t is applied to a capacitor of 1 μF. Calculate the…

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Q: generate

A: If the strength of the magnetic field is also increased then the wire moves through a stronger…

Q: 12. A 600 kVA, 2000/200V  transformer has a primary winding resistance of 0.6Ω and a secondary…

A: Given- Power = 600 KA Primary voltage V1=2000 V Secondary voltage V2=200 V Primary winding…

Q: When 5.0 A at 110 V flows in the primary of an ideal transformer, how many amps at 24 V can flow in…

A: Here given 5 Amp flows at a voltage 110 Volt in a primary ideal transformer. We have to calculate…

Q: If magnetic coils are powered by AC, why don’t their contacts open and close 120 times per second?

A: The overload relay (OLR) is similar in design which is used in manual motor starters. The basic…

Q: A coil of 1000 turns encloses an area of 25 cm2 . It is rotated in 0.010 s from a position where its…

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Q: An air-cored solenoid with length 30 cm, area of cross-section 25 cm2 and number of turns 500,…

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Q: When you push the South end of a magnet into a solenoid, it creates a negative voltage. If you push…

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Q: 8. A coil with an inductance of 1.5 H and a resistance of 10 Ais suddenly connected to an ideal…

A: Given data The inductance of the coil is L = 1.5 H. The resistance of the coil is R = 10 Ω. The emf…

Q: The illustration shows a step-up transformer. The primary coil has Np = 250 turns and the secondary…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: A bicycle generator rotates at 1,975 rad/s, producing a 17.5 V peak emf. It has a 46-turn, 1.00 by…

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Q: Suppose a generator has a peak voltage of 205 V and its 500 turn, 5.5 cm diameter coil rotates in a…

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Q: what isthe current in the circuit after 1 μsec?

A: The equation for the current here is

Q: A 2 kV/250 V transformer has 50 turns on the secondary winding, then the number of turns on the…

A: Given: primary voltage,     V1 = 2000 V secondary voltage, V2 = 250 V secondary turns    , n2 = 50

Q: A powerful electromagnet has a field of 1.6T and a cross-sectional area of 0.20m2. if we place a…

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Q: An emf of 24.0 mV is induced in a 500-turn coil when the current is changing at a rate of 10.0 A/s.…

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Q: instrument requires 2.500 A current to operate. The primary coil of a transformer draws a 5.000 A…

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Q: A bicycle generator rotates at 1,800 rad/s, producing a 15.5 V peak emf. It has a 45-turn, 1.00 by…

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Q: A 10 ohm resistance wire and a 0.5 H coil are connected in series between the ends of a generator…

A: SOlution: Given that R = 10 Ohm L = 0.5 H V = 100sin40t

Q: You have a spool of copper wire 4.98 mm in diameter and a power supply. You decide to wrap the wire…

A: The solution is given below

Q: A generator is made from a set of 50 wire loops of radius 40.0 cm that turn in a uniform 0.0900 T…

A: