The open-circuit voltage of 240 V and the full load secondary voltage of 230 V, then the % regulation of a transformer is
Q: The primary winding of an ideal transformer is wound with 550 turns and is connected to a 220V rms…
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Q: (23%) Problem 4: Consider a transformer, used to recharge rechargeable flashlight batteries, that…
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Q: A transformer is used to supply a 12-V model trainwith power from a 110-V wall plug. The train…
A: Given:Vp(primary winding voltage)=110 VVs(secondary winding voltage)=12 VPout(output power)=50 WNow,…
Q: The primary windings of a transformer which has an 88% efficiency are connected to 110-V ac. The…
A: Given:- The primary windings of a transformer that has an 88% efficiency are connected to 110-V ac.…
Q: An ideal neon sign transformer provides 9 250 V at 30.0 mA with an input voltage of 115 V. Calculate…
A: We know that:For an ideal transformer,The power input equals the power output,Input power of the…
Q: A step-up transformer connected to a 110-V line is used to supply a hydrogen-gas discharge tube with…
A: Given: Vp=110 VVs=5.0 kV =5*103 VPout=70 W
Q: The secondary coil of a transformer has 440 turns, and produces an output AC voltage of 25.0 V when…
A: GivenNumber of turn in secondary coil (Ns)=440 turnOutput voltage of Secondary coil(Vs)=25 VVolatge…
Q: The primary circuit of a transformer consists of an A.C. power supply (Vrms 48.5 V) and a 7.96 mH…
A: V (rms) = 48.5 V I (rms) = 1.54 A L = 0.00796 H Using , V = I Z where Z is the impedence 48.5 = 1.54…
Q: Neon signs require 12-kV for their operation. A transformer is to be used to change the voltage from…
A: Given data The primary winding voltage is Vp = 220 V. The secondary winding voltage is Vs = 12 kV.…
Q: A certain generator has armature resistance 0.080 ohms and develops an induced EMF of 440 V when…
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Q: The current in an inductive coil changes at 30A /s and the back EMF is 3V Calculate the inductance…
A: Given value--- The current in an inductive coil changes at 30A /s. the back EMF is 3V. We have to…
Q: Plz do it
A: Given that,The voltage of the secondary winding, Vs= 110 VoltPrimary Voltage, VP= 5.0 kVWe know the…
Q: What transformer brings the pd back to safe usable levels at the consumers end?
A: To determine,What transformer brings the pd back to safe usable levels at the consumers end.
Q: A transformer has a turns ratio of two to one. If a 100 ohm resistor is connected on the high side,…
A: The expression for total resistance, which is referred to primary,
Q: A wire along the z-axis (horizontal) with current I going in the positive z-direction produces the…
A: We know that the induced e.m.f e= -(rate of change of flux) Flux = B.A Where B is magnetic field and…
Q: The DC shunt generator with the terminal voltage 350 V, armature drop 9 V and the total brush drop 4…
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Q: A coil of inductance 0.5H and resistance 100n is connected to a 240V,50HZ ac supply. a) What is the…
A: Given value--- inductance = 0.5 H. resistance = 100 ohm. Voltage = 240 V frequency = 50 Hz. We…
Q: The peak value of an alternating current in a 1900-WW device is 4.2 AA . What is the rms voltage…
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Q: A 24300 / 300 volts, 62 hz, 147.6 KVA step down transformer has an induce emf of 3 volts per turn.…
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Q: (a) A transformer has Np-273 primary turns and N,-1345 secondary turns. The input voltage is V-220 V…
A: Given data The number of turns in the primary is NP=273 The number of turns in the secondary is…
Q: The output power of an ideal transformer is
A: The output power of an ideal transformer is always same as input power. because transformer does not…
Q: The primary winding of an ideal transformer is wound with 550 turns and is connected to a 220V rms…
A: Number of turns in primary Np=550 Voltage in primary coilVp=220 V Voltage in secondary coil Vs=20 V…
Q: a potentian transformer is desired to allow safe reading on a 4600 v line. what voltage ratio of…
A: Safe voltage= Vmax= 4600 volt secondary voltage of transformer = 120 volt (generally considered…
Q: oltage of 120 volts and a secondary voltage of 18 volts. The primary excitation current is 0.25 amp.…
A: Given;- A transformer has a primary voltage of Vprimary = 120 volts A secondary voltage of…
Q: When 9 A of AC current at 123 V flows in the primary coil of an ideal transformer, how many amps at…
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Q: Can a transformer be operated by a DC waveform at its input? What would be the secondary voltage of…
A: Can a transformer be operated by a DC waveform at its input? What would be the secondary voltage of…
Q: Why does AC power alternate ?
A: Ac power is defined as a flow of charge that exhibits a periodic change in direction. This is known…
Q: 2. A coil having an inductance of 437.5 mH with a negligible resistance is connected in series with…
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