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Q4 (ii) The secondary winding of an ideal transformer is wound with 120 turns and the primary is connected to a 220 V rms supply. (a) If the secondary voltage is 20 V rms, calculate the number of turns on the primary winding.

Q4 (ii) The secondary winding of an ideal transformer is wound with 120 turns and the primary is connected to a 220 V rms supply. (a) If the secondary voltage is 20 V rms, calculate the number of turns on the primary winding.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Hi, can you help me with the whole of question 4ii (the second picture)

Q4 (i) The material of the magnetic circuit shown in Figure 4.1 has the magnetisation curve shown in Figure 4.2. The magnetic core has a cross-sectional area of 2 cm2. and a mean length of 30 cm. 30cm<- cross-sectional area Figure 4.1 0.6 0.5 0.4 B (T) 0.3 0.2 0.1 1000 2000 3000 4000 5000 6000 7000 H (Am-1) Figure 4.2 If a current of 0.5 A passes through a primary winding of 660 turns, determine (а) the magnetic field intensity (b) the magnetic flux.
Transcribed Image Text:Q4 (i) The material of the magnetic circuit shown in Figure 4.1 has the magnetisation curve shown in Figure 4.2. The magnetic core has a cross-sectional area of 2 cm2. and a mean length of 30 cm. 30cm<- cross-sectional area Figure 4.1 0.6 0.5 0.4 B (T) 0.3 0.2 0.1 1000 2000 3000 4000 5000 6000 7000 H (Am-1) Figure 4.2 If a current of 0.5 A passes through a primary winding of 660 turns, determine (а) the magnetic field intensity (b) the magnetic flux.
Q4 (ii) The secondary winding of an ideal transformer is wound with 120 turns and the primary is connected to a 220 V rms supply. (a) If the secondary voltage is 20 V rms, calculate the number of turns on the primary winding. The secondary winding is terminated by a resistance of 50 Q. Calculate (b) the currents flowing in the secondary and primary windings (c) the equivalent resistor seen at the input to the primary winding (d) the power taken from the supply
Transcribed Image Text:Q4 (ii) The secondary winding of an ideal transformer is wound with 120 turns and the primary is connected to a 220 V rms supply. (a) If the secondary voltage is 20 V rms, calculate the number of turns on the primary winding. The secondary winding is terminated by a resistance of 50 Q. Calculate (b) the currents flowing in the secondary and primary windings (c) the equivalent resistor seen at the input to the primary winding (d) the power taken from the supply
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