
10. For the ideal transformer shown, find the number of turns on the secondary of the...
An ideal transformer with 5 turns on the primary and 10 turns on the secondary is shown in the figure. A sinusoidal voltage source having V(t) = 10 sin(100t) volts is connected across the primary and a 1 Ω resistor is connected across the secondary. What is the maximum value of the current in the primary circuit (not the secondary)? (answer is 40 amps)
An ideal transformer has a primary winding with 100 turns and a secondary winding with 20 turns. If the primary winding has a voltage drop of 10 V AC, what is the EMF in the secondary coil? A. 100 V AC B. 10 V AC C. 2 V AC D. 20 V AC
A transformer has 2000 turns at the primary side and 1000 turns at the secondary side. If 240V 50Hz is supplied to the primary side and purely resistive load of 150 ohm is terminated to the secondary winding. Calculate the impedance of the primary input.
A transformer has 500 turns in the primary and 50 turns in the secondary. If the input voltage is 120V, what is the output voltage? Answer: V If the transformer has an efficiency of 92%, what is the output current if the input current at 120V is 0.50A? Answer: А
An ideal step-down transformer has a primary coil of 370 turns and a secondary coil of 22 turns. Its primary coil is plugged into an outlet with 115 V, from which it draws a current of 0.29 A. (a) What is the voltage in the secondary coil? (b) Calculate the current in the secondary coil? (c) Assuming that the transformer secondary is driving a resistive load, calculate the average power dissipated in the resistor.
An ideal transformer with 300 turns in its primary and 500 turns in its secondary has a peak primary voltage of 12 volts. Its peak secondary voltage is a. 10 b. 20 c. 30 A transformer's primary and secondary coils are connected so that the current can flow directly from one to the other. a. true b. false
The primary of an ideal iron-core transformer with a 10:1 (primary:secondary) turns ratio is connected to an ideal sinusoidal voltage source whose rms phasor is a real number Vi. The secondary is connected to a load impedance of 3 + 2j Ohms. a) Find the rms phasor for the current flowing through the primary.. b) Find the maximum instantaneous current flowing through the primary.
An ideal step-down transformer has a primary coil of 400 turns and a secondary coil of 25 turns. Its primary coil is plugged into an outlet with 110 V(AC), from which it draws an rms current of 0.83 A. 1.)What is the voltage in the secondary coil? 2.)Calculate the rms current in the secondary coil. 3.)Assuming that the transformer secondary is driving a resistive load, calculate the average power dissipated in the resistor.
A stepup transformer decreases voltage from 120V to 6V. The secondary coil has 80 turns and current 50A. Find power, current and number of turns in the primary coil
11 A step-up transformer has 10 primary turns and 100 secondary turns. If the primary current is 20 A, what is the secondary current? O A 2000 A 0 B 200 A O c 20A OD ZA Unanswered Save F10 F9 F12 - PrtScr Insert Delt Bach