A transformer with more primary turns than secondary turns will produce a secondary voltage higher than the primary voltage. O True O False
Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…
A: The potential of the batteries is VB=9.0 V The current in the batteries is IB=249 mA The potential…
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: A step-down transformer (turns ratio =1:8) is used with an electric train to reduce the voltage from…
A:
Q: A transformer has 496 turns on its primary and 122 turns on its secondary. (a) Is this a step-up or…
A: (a) For transformer, Here, Vs, Vp, Np and Ns represent the secondary voltage, the primary voltage,…
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: A transformer has 512 turns on its primary and 116 turns on its secondary. (a) Is this a step-up or…
A: A transformer that increases the voltage from primary to secondary (more secondary winding turns…
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: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…
A: Given that primary and secondary voltages and secondary current in the transformers Vs = 9 V Is =…
Q: TRUE or FALSE: In an ideal step-down transformer, the current at the secondary is lower compared to…
A:
Q: A transformer with a turns ratio (secondary/primary) of 1:18 isused to step down the voltage from a…
A: Given: A transformer with a turns ratio (secondary/primary) = 1:18, step down the voltage from a…
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: In a non-ideal transformer, provide a physical explanation as to why the current in the primary coil…
A: consider the transformer arrangement as shown
Q: She suggests that he modify an old transformer that they don't need anymore to do the job. The old…
A:
Q: QUESTION 6 A transformer with primary 928 windings and 6,380 secondary windings has an input voltage…
A:
Q: The output power of an ideal transformer is
A: The output power of an ideal transformer is always same as input power. because transformer does not…
Q: A transformer has 400 turns on its secondary and 100 turns on its primary. The primary is connected…
A: Given: The number of turns in primary coil is N1=100 The number of turns in secondary coil is…
Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…
A:
Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…
A: Vs = 9 V Is = 252 mA = 0.252 A Vp = 120 V
Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…
A:
Q: What is Electromagnetic Induction (EMI)? Differentiate a transformer with a generator
A: To determine,What is Electromagnetic Induction (EMI) and Differentiate a transformer with a…
Q: a step down transformer has an output of 12v and .5A when connected to a 120V line. assume no…
A:
Q: (a) What is the voltage output of a transformer used for rechargeable flashlight batteries if its…
A:
Q: ransformer has 770 primary and 190 secondary turns. An alte V is applied to the primary. What is the…
A: Given values:- Number of primary turns,(NP)=770 -----(1) Number of secondary turns,(NS)=190 -----(2)…
Q: A plug-in transformer, as shown, supplies 9.00 V to a video game system. (a) How many turns are…
A: a. the number of turns in the secondary coil can be calculated from the transformer equation.
Step by step
Solved in 2 steps with 2 images
- Does a transformer work when a DC current flows through the primary? If not, why?A transformer is to be used to provide power for a computer disk drive that needs 5.6 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 420, and it delivers 500 mA (the secondary current) at an output voltage of 5.6 V (rms). (a) Should the transformer have more turns in the secondary compared to the primary, or fewer turns? O There should be more turns in the secondary. O There should be fewer turns in the secondary. (b) Find the current in the primary. (c) Find the number of turns in the secondary. turnsimer Notes EV A transformer has 400 primary, and 80 secondary, turns. If an alternating potential of 250 V is applied to the primary, what potential is produced across the secondary? V
- Calculate the peak voltage of a generator that rotates its 100-turn, 0.100 m diameter coil at 3600 rpm in a 0.800 T field.A transformer is used to supply a 14.5 V model train with power from a 132V wall plug. The train operates at 64 W of power. (a) What is the current in the secondary coil of the transformer in ampere? (b) What is the current in the primary coil in ampere? (c) What is the ratio of the number of primary to secondary turns? (d) What type of transformer is this transformerTo ignite a mixture of gasoline and air inside an internal combustion engine--like in your car--a spark is generated by a high voltage across the spark plug, usually in the 10's of thousands of volts, but the battery is only 12 V. This massive increase in voltage is achieved through a transformer called the 'ignition coil'. A typical ignition coil has a primary with 300 turns wrapped around a radius of 2 cm over a linear distance of 15 cm. The secondary has 60,000 turns of wire over the same cylinder. The spark is generated when the current is suddenly shut off to the coil. Assuming that the magnetic field is uniform inside the primary and secondary coils, and that all of the magnetic field lines that go through the primary go through the secondary, what voltage is generated in the secondary coil if the current in the primary coil drops from 10 A to 0 A at a steady rate over the course of 50 mirco-seconds? Give your answer to 2 significant digits. Hint: Remember the definition of flux…
- The transformer on a utility pole steps the voltage down from 10000 V to 220 V for use in a college science building. During the day, the transformer delivers electric energy at the rate of 10.0 kW. a) Assuming the transformer to be ideal, during that time, what are the primary and secondary currents in the transformer? b) If the transformer is only 90 % efficient (but still delivers electric power at 10.0 kW), how does its input current compare to the ideal case? c) At what rate is heat lost in the nonideal transformer? d) If you wanted to keep the transformer cool and to do this needed to dissipate half of the joule heating of part c) using water cooling lines (the other half is taken care of by air cooling), what should be the rate of flow (in liters per minute) of water in the lines? Assume the input cool water is at 68∘∘F and the maximum allowable output water temperature is 98∘∘F} .A transformer outside of a business steps the average voltage down from 3600 V to 120 V. The transformer delivers 1.50 × 106 W to the business at 82.0% efficiency. (Give answers to 3 sig.figs.) Find … (a) the power delivered to the primary, (b) the current in the primary, and (c) the current in the secondary.