Energy is conserved. If there is an average current of about 20 A in the 12...
Energy is conserved. If there is an average current of about 20 A in the 12 V primary circuit of the transformer, what is the average current in the 120 V secondary circuit of that transformer?
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Energy is conserved. If there is an average current of about 20
A in the 12...
A transformer has 1020 turns in the primary and 12 turns in the secondary. (a) Is...
A transformer has 1020 turns in the primary and 12 turns in the secondary. (a) Is this a step-up or step-down transformer? (b) If the primary is connected across 120 V rms, what is the open-circuit voltage across the secondary? ( ) V (c) If the primary current is 0.3 A, what is the secondary current, assuming negligible magnetization current and no power loss? ( ) A
If the average current passing through the secondary coil of the transformer with 40 turns and...
If the average current passing through the secondary coil of the transformer with 40 turns and a secondary voltage of 24-V AC is 10 A, what average current is passing through the primary coil that makes 200 turns and has a primary voltage of 120-V AC?
A transformer has 580 primary turns and 12 secondary turns. (a) If Vp is 120 V...
A transformer has 580 primary turns and 12 secondary turns. (a) If Vp is 120 V (rms), what is Vs with an open circuit? If the secondary now has a resistive load of 19 Ω, what is the current in the (b) primary and (c) secondary?
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms)...
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms) to a 5.00 Ohm resistor in the secondary circuit. (a) What should the ratio of turns of the primary to secondary circuit of the transformer be? (b) What is the average power delivered to the secondary? (c) Assuming the transformer to be ideal (i.e., 100% of the power in the primary is transferred to the second), what is the rms current in the primary?
1. Is the power supply for a transformer AC or DC? Explain in detail why only...
1. Is the power supply for a transformer AC or DC? Explain in detail why only this type of power supply will work. 2. Some configurations with the iron core have low efficiency while others have high efficiency. What is the iron core doing to cause this? Be specific. (Hint: think about how a transformer works.) 3. For an ideal transformer the energy must be conserved, so the average power (P=IV) in the two circuits must be equal. Therefore, if...
A step-up transformer has a primary coil with 145 loops and a secondary coil with 1,595...
A step-up transformer has a primary coil with 145 loops and a secondary coil with 1,595 loops. If the primary coil is supplied with a household current of 120 V and 12 A, (a) what voltage is produced in the secondary circuit? V (b) What current flows in the secondary circuit? A
20) An ideal transformer steps down 120 V to 12. V and the 2630.-turn secondary supplies...
20) An ideal transformer steps down 120 V to 12. V and the 2630.-turn secondary supplies 12. A. (a) Determine the current in the primary. Total 10 Points (b) Determine the turns ratio. (c) What is the ratio of output power to input power?
Ons Nse-12) Nc(-120) Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up...
ons Nse-12) Nc(-120) Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the transformer? Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the...
18. Al wat rate would the current in a 100-mH inductor have to change to induce...
18. Al wat rate would the current in a 100-mH inductor have to change to induce an emf of 1000 V in the inductor? 19. A transformer changes the 10,000 V power line to 120 V. If the primary coil contains 750 turns, how many turns are on the secondary? 20. A series circuit consists of a H an - -- - -- 19. A transformer changes the 10,000 V power line to 120 V. If the primary coil contains...
ircuit for which R = 20 14. (a) Calculate the resonant angular frequency of an RLC...
ircuit for which R = 20 14. (a) Calculate the resonant angular frequency of an RLC series circuit for which R= 200 and C = 4.0uF. (b) If R is changed to 300 , what is the resonant angular frequency?! , L = 75 mH , -O- (a) senes (b) time current direction L -C 15. A transformer has a primary coil of 500 turns and a secondary coil of 10 turns. If Vprimary = 120 V rms, and the...
A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms) to a 5.00 Ohm resistor in the secondary circuit. (a) What should the ratio of turns of the primary to secondary circuit of the transformer be? (b) What is the average power delivered to the secondary? (c) Assuming the transformer to be ideal (i.e., 100% of the power in the primary is transferred to the second), what is the rms current in the primary?
20) An ideal transformer steps down 120 V to 12. V and the 2630.-turn secondary supplies 12. A. (a) Determine the current in the primary. Total 10 Points (b) Determine the turns ratio. (c) What is the ratio of output power to input power?
ons Nse-12) Nc(-120) Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the transformer? Q1: A 100 VA 120/12-V transformer is to be connected so as to form a step-up autotransformer (see Figure). A primary voltage of 120 v is applied to the transformer. a) What is the secondary voltage of the...
18. Al wat rate would the current in a 100-mH inductor have to change to induce an emf of 1000 V in the inductor? 19. A transformer changes the 10,000 V power line to 120 V. If the primary coil contains 750 turns, how many turns are on the secondary? 20. A series circuit consists of a H an - -- - -- 19. A transformer changes the 10,000 V power line to 120 V. If the primary coil contains...
ircuit for which R = 20 14. (a) Calculate the resonant angular frequency of an RLC series circuit for which R= 200 and C = 4.0uF. (b) If R is changed to 300 , what is the resonant angular frequency?! , L = 75 mH , -O- (a) senes (b) time current direction L -C 15. A transformer has a primary coil of 500 turns and a secondary coil of 10 turns. If Vprimary = 120 V rms, and the...
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