A transformer has 30 turns in the primary coil and 120 secondary turns. a. If the primary voltage is 9.0 V, what is the voltage induced in the secondary coil? b. If the Load resistor is 10 ohms, what is the current in the secondary coil?
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Question
A transformer has 30 turns in the primary coil and 120 secondary turns.
a. If the primary voltage is 9.0 V, what is the voltage induced in the secondary coil?
b. If the Load resistor is 10 ohms, what is the current in the secondary coil?
Please provide steps and explanations, I am struggling to understand this section in physics. Thank you!
Step by step
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- Part A A step-up transformer increases 10 V to 150 V . What is the current in the secondary coil as compared to the primary coil? Assume 100% efficiency. Express your answer using two significant figures. ? %3DPLEASE ANSWER ALL QUESTIONS BELOW FOR A THUMBS UPQ11. Please look at the circuit diagram given, the switch is originally kept at point a for a long time, then the switch is quickly flipped to point b.it is your job to determine the following. a. the frequency of current oscillations in the LC circuit. b. the current amplitude of the oscillations which result. 30.0 V 15.0 5.80 μF ele 48.0 mH
- 2. Let the EMF be E = 10V, r = 20, R = 50 2 and L = 0.6 H. Assume the switch is in position (a) for a long time and then is switched into position (b) at t = 0. a. What is the current through the inductor right after the switch is thrown? b. At what time is the current equal to 0.3 Amp? Show work.A transformer has 472 turns on its primary and 108 turns on its secondary. (a) Is this a step-up or a step-down transformer? (b) If a voltage of 103 V is applied to the primary and a current of 0.4 A flows in these windings, what are the voltage output of the secondary and the current in the secondary?voltage Vcurrent AA shunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, R, is 208 n. The resistance of the rotor, R. is 4.90 n. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.46 A from the line. Friction losses amount to 45.0 W Part A Compute the field current Ir. Express your answer in amperes. • View Available Hint(s) Temglates Symbols undo regdo Tesel keyboard shortcuts Help A I = 0.56 Submit Prevlous Anewere X Incorrect, Try Again; 4 attempts remaining Part B Compute the rotor current I > View Available Hint(s) Figure 1 of 1 Templates Symbols undo redo Teset keyboard shortcuts Help A. I = 4,26 Submit Prevlous Answers X Incorrect; Try Again; 5 attempts remaining R ER. Part C Compute the emf E.
- A transformer is designed for use in a neon sign. The input voltage is 120 V and the output needs to be 3000V. The output current is 50mA. 1. If 100 turns are placed on the primary coil, how many turns will need to be on the secondary coil? 2. What is the current in the primary set of coils? 3. What is the power output of the transformer?Needs Complete typed solution with 100 % accuracy.c1. What is the magnitude of the induced emf at t = 0 s? c2. What is the magnitude of the induced emf after a long time has passed? d. After the current in the RL circuit has reached its final value (as in b2. above) the positions of the switches are reversed, with S1 open and S2.How long does it take for the current to reach a tenth of its initial value?