furns and a secondary colil aof 88 turns b) resistor lamp AC A Figure 18.36 a) If the primary coil is connected to the I10V AC mains supply, what will be the secondary voltage? b) Calculate the efficiency of the transformer if the primary current is 0.5 A and the secondary current 5.0A. c) The secondary coil is removed and a small coil connected to a low voltage lomp is plac

Q: The primary coil of an ideal transformer has 100 turns, and its secondary coil has 400 turns. If the…

A:

Q: A transformer has a primary voltage of V,= 400 V and primary current of I,= 1.5 A. If the measured…

A: Given : primary voltage, Vp = 400 V              primary current, Ip = 1.5 A              Secondary…

Q: The primary coil of a transformer has N1 = 250 turns, and its secondary coil has N2 = 1500 turns. If…

A:

Q: nas ). The output voltage of the generator is 4.50 kV. (a) What is the line loss if a transformer is…

A: GivenResistance per unit length=4.3×10-4 ΩmPower Tansmitted, P=5 MW=5×106 WLength over which power…

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 transformer has 400 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given :     Number of turns in primary, NP = 100    Number of turns in secondary, NS = 400…

Q: Question 8 900 turns 2200 400 2 500 Ω turns 3.3 k2 Calculate all voltages and all currents in this…

A: Given data: The primary turns is Np=900. The secondary turns is Ns=2200. The voltage drop across…

Q: A transformer has 512 turns on its primary and 116 turns on its secondary. (a) Is this a step-up or…

A: A transformer that increases the voltage from primary to secondary (more secondary winding turns…

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

A:

Q: A step-down transformer has 70 turns in its primary coil and 14 turns in its secondary coil. The…

A: Given Primary coil - 70 turns Secondry coil - 14 turns Voltage ratio - 14/70 = 0.2

Q: An induction coil in an automobile is much like an ac transformer that boosts low voltage to high.…

A: Transformer equation can be expressed as NPNS=VPVS

Q: Problem 8: Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once…

A: Part (a)Find the relation between current, power and voltage.

Q: A scale train transformer is plugged into 120 V ac and draws 0.35 A while supplying 7.5 A to the…

A:

Q: The sketch represents an ideal transformer. What is the current in the secondary if the primary side…

A: This is a step up transformer. NpNs=VpVsCalculate the voltage generated across the secondary…

Q: An ideal neon sign transformer provides 9330 V at 29.0 mA with an input voltage of 110 V. Calculate…

A: In case of ideal transformer, Pin= Pout Power = voltage× current Pin= input power= vinIin Where, Vin…

Q: A 50 Hz AC generator's 1m x 2m coil with 100 turns is in a uniform magnetic field of 0.1 T. What is…

A: A 50 Hz AC generator's 1m x 2m coil with 100 turns is in a uniform magnetic field of 0.1 T. What is…

Q: A transmission line that has a resistance per unit length of 4.30 x 104 n /m is to be used to…

A:

Q: Ex. 7: When 100V D.C. is applied across a coil, a current of 1A flows through it. When 100 V A.C. of…

A: We need to compute-Resistance (R)=?Impedance (Z)=?Self Inductance (L)=?The data given as-Applied emf…

Q: Two identical single phase transformers are connected in V-V-connection across three-phase mains and…

A:

Q: In a non-ideal transformer, provide a physical explanation as to why the current in the primary coil…

A: consider the transformer arrangement as shown

Q: B-H curve of iron, used to make transformer co shown below. A 11 kV/400 V, 100 kW, 50 Hz transformer…

A: Concept used: Hysteresis is a phenomena in which magnetic field of an object lacks behind the…

Q: A step-down transformer has 600 V across the primary coil and 120 V across the secondary. The…

A:

Q: The input coil of a transformer has 10 windings. The output coil has 40 windings. If an AC current…

A:

Q: What is the voltage output (in V) of a transformer used for rechargeable flashlight batteries, if…

A: (a)Write the relation between turns of winding and voltage between primary and secondary winding.

Q: What is the inductance of a coil if it produces an emf of 8.46V when the current in it changes from…

A: Given: Current ranges from -28.3 mA to 33.2 mA emf is 8.46 V

Q: A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage…

A: Given  V1= 330 kV V2= 775 kV P1 = 1000MW  R = 2.30 ohms

Q: The primary coil of an ideal transformer provides 100 W of power. If the emf of the secondary coil…

A: Given data:  An ideal transformer  Power of primary coil (P1) = 100 W Voltage of secondary coil (V2)…

Q: A step down transformer produces produces a voltage of 6 volts across the sec- ondary coil when the…

A: voltage in primary, Vp = 120 V  voltage in secondary, Vs = 6 V

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

A: Emf produced by the generator is 10.68V Explanation:Given data:-solution:-

Q: When I visit family in India, I usually need an adapter to use my US bought electrical devices (hair…

A: Given, Vinput=220 VVoutput=110Vnprimary=100

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 transformer has 500 turns in its primary and 300 turns in its secondary. 1200 V ac is connected to…

A:

Q: A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If the secondary voltage is 240…

A:

Q: An ideal step-up transformer with turn ratio 1:30 is supplied with an input power of 120 W. If the…

A: According to the ideal transformer, V1V2=N1N2V1=N1N2V2=130210 V=7 V Find the input current.…

Q: 21. From the energy conservation point of view, the input power of the first transformer must be…

A: From the given diagram of the transformers, it can be observed that both the transformers have 3…

Q: A transformer having efficiency of 90% is working on 200 V and3 kW power supply. If the current in…

A:

Q: A student needs to reduce the percent power loss by 100 times by using a transformer. What would the…

A: Power loss (Ploss) = I2R ...... (1) Here, I is the current and R is resistance As I = P/V .......…

Q: A 140 V emf is across a transformer's 190-turn primary coil.  How many turns should the secondary…

A:

Q: A transformer has 600 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given A transformer has 600 turns on its secondary and 100 turns on its primary. The primary is…