In an ideal 1:8 step-down transformer, at one instant the primary power is 10 kW and the secondary current is 25 A. Determine the primary voltage and the secondary voltage at that instant, and the resistance of the load in the secondary coil.

Q: A transformer has 100 turns in its primary coil and 2000 turns in its secondary coil. The emf in the…

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Q: mer consists of 295 primary windings and lary windings. ▼ If the potential difference across the…

A: winding in primary coil (N1) = 295 winding in secondry coil (N2) = 834 Potential difference across…

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

A: peak voltage of the generator is  = 490 VN = 495 turns diameter d = 8 cm = 0.08 mB = 0.250 T

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

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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: How can you distinguish the primary winding from the secondary winding in a step-up transformer?

A: PRIMARY AND SECONDARY WINDING IS DEFINED ON THE BASSIS OF POWER SUPPLY PRIMARY WINDING IS ONE…

Q: In dc generator the contacts to the rotating loop are made using a split ring and called 2 A) as…

A: DC generators are devices that convert mechanical energy into electrical energy. These devices work…

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: If two coils placed next to one another have a mutual inductance of 5.00 mH, what voltage is induced…

A: Mutual inductance, M = 5 mH  change in current, dI =2 A  change in time, dt = 30 ms

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

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

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Q: A transformer is to be used to provide power for a computer disk drive that needs 5.0 V (rms)…

A: Given that the value of primary and secondary voltage and secondary Current. Then We have to…

Q: At what angular velocity in rotation/min will the peak voltage of a generator be 540 V, if its…

A: ε0 = 540 V N = 420 turns  d = 6.3 cm = 0.063 m B = 0.290 T To find = Angular velocity in rpm

Q: An electronic device needs 9V AC to operate. Its transformer is plugged into a 120V AC source (power…

A: Given data,  Np = 600 turns Vs = 9 V Vp = 120 V

Q: Find the following: Voltage induced in the Secondary winding Current flowing in the Secondary…

A: Given  P=20KVA=20000 VA (power rating of transformer) N1=440(number of turns in primary coil)N2=55…

Q: The primary coil of a step-down transformer is connected across the terminals of a standard wall…

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Q: The primary coil in a transformer contains 124 loops, and the secondary coil consists of 19 loops.…

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Q: In a step-up transformer, the voltage in the secondary coil is ________ than the voltage in the…

A: Here talking about the step up and step down transformer . We have to fill the blanks from the below…

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: 67 turns in its primary coil and 13 turns in its secondary coil. The primary coil is connected to…

A: Given:Number of turns in the primary coil, Np=67Number of turns in the  secondary coil, Ns=13Voltage…

Q: a Suppose the transformer of Figure 1 has 500 turns on its primary and 1000 turns on it: secondary.…

A: Given that,Number of turns on primary, NP=500Number of turns on secondary, NS=1000turns ratio , a=…

Q: The 460-turn primary coil of a step-down transformer is connected to an ac line that is 120 V (rms).…

A: 1) Calculate the number of turns in the secondary coil. N2N1=V2V1N2460 turns=6.3 V120 VN2=24.15…

Q: If two coils placed next to one another have a mutual inductance of 7.50 mH, what voltage (in V) is…

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Q: An AC source (Vrms = 33.7 V, frequency 48 Hz) is connected in series to a resistor R = 4.54 Q and a…

A: for Maximum voltage case we need to consider the peak voltage of the supply. peak voltage is root…

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: A step-down transformer has 62 turns in its primary coil and 40 turns in its secondary coil. The…

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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 .......…