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- For figure (1)draw and calculate the voltages waveform across each half of secondary winding and across load when 100sin2π60t applied across the primary, then find PIV.Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. The coil of a generator has an equivalent resistance of 1.5 ohms at 20 °C. After being used for several hours, the resistance is found to be 1.75 ohms. Determine the temperature of the coils at this time. The temperature coefficient of resistance at 0 °C of the coil is 0.004 OC-1.The self inductance of a coil is a. Inversely proportional to current b. Inversely proportional to flux c. Inversely proportional to number of turns d. Directly proportional to current
- (4) For f = 60 Hz, V=120 v-rms and number of turns N = 500. Find rms flux linkages of the coil. (a) 5.3222x10 Wb (b) 4.2824x10 Wb (c) 6.3662x10 Wb (d) 7.3552x10 W bQ5. For the following center tapped transformer, show the waveform across each half of the secondary winding and across R, when a 100 V peak sine wave is applied to the primarywinding. What is the PIV rating must the diodeshave? (Use constant voltage drop model for the Silicon diode) D IN4001 OV 10 kN IN4001 DELL10. A potential difference of 250 V is applied to a field winding at 15-C and the current is 5 A. What will be the temperature of the winding when current has fallen to 3.91 A applied voltage being constant. Assume temperature coefficient at 15'C is equal to 1/254.5 per °C
- Magnetic field force lines created by the primary coil in transformers pass through the secondary coil and an induction current occurs in the secondary coil. What is the reason for induction current in the secondary coil?A triangle waveform with following specifications in Table B1. Table B1 RMS Voltage 50mV Number of cycles/second 100 i) Sketch the approximate triangular waveform with all specifications. ii) A transformer has primary coil with 100 turns and secondary coil with 120 turns. Estimate the current in the secondary coil, If the current in the primary coil is 4 AmpereA toroidal coil, with a circular cross-sectional area of 0.2m2. The coil inductance is 0.28H. The coil has 500 turns. How much current should flow in the coil to get a flux linkage of 498? a. 498.000 A b. 140.000 A c. 1778.571 A d. 249000.000 A e. 889285.714 A
- Ip Ep=40 V f = 60 Hz N₂= 20- N₁ = 120 Find the maximum flux om om = Find the magnitude of the induced secondary voltage Es Es = units + Is Es units If the coefficient of coupling (k)= 0.75, determine the magnitude of the induced secondary voltage Es Esk=0.75 = unitsFhe number of parallel paths and the number of series conductrs required for a given kW reting are determined by. System voltage Armature resistance Type of winding Field currentTwo impedance coils A and B are connected in series to a 111-volt ac source. Coil A has a resistance of 12 ohms and an inductive resistance of 16 ohms. Coil B has a resistance of 24 ohms and an inductive reactance of 10 ohms. Calculate the voltage drop across each coil. Only in rectangular form