A transformer consisting of two coils wrapped around an iron core is connected to a generator...
A transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor, as shown in the drawing. There are 12 turns in the primary coil and 14 turns in the secondary coil. The peak voltage across the resistor is 56.2 V. What is the peak emf of the generator?
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A transformer consisting of two coils wrapped around an iron
core is connected to a generator...
A transformer consisting of two coils wrapped around an iron core is connected to a generator...
A transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor, as shown in the drawing. There are 10 turns in the primary coil and 23 turns in the secondary coil. The peak voltage in the resistor is 70 V. What is the peak emf of the generator?
A transformer has 500 turns of wire wrapped around the primary coil and 75 turns of...
A transformer has 500 turns of wire wrapped around the primary coil and 75 turns of wire wrapped around the secondary coil. If the input voltage on the primary side is 120 V what will be the output voltage of the transformer? 500 V 75 V 18 V 50 V 800 V
A transformer has a primary circuit with 12 coils while the secondary circuit contains 2 coils...
A transformer has a primary circuit with 12 coils while the secondary circuit contains 2 coils and has a potential of 8V across it. What is the potential on the primary input of the transformer? Answer: The primary coil of a transformer has 30 turns and 55V across it. What is the potential across the secondary coil which contains 12 turns? Answer:
Two coils shown in the diagram are wound around two iron cores. The primary coil has...
Two coils shown in the diagram are wound around two iron cores.
The primary coil has 500 turns, self-inductance 7.0 mH and
resistance fo 5.0 ohms. The battery supplies an EMF of 10.0V. The
secondary has 100 turns and resistance 1.0 ohms. The mutual
inductance of the system is 3.0 mH.
a) What is the time constant?
b) How much current is flowing in the primary after one time
constant?
c) How much back EMF is generated in the primary...
5. (10 pts) A transformer is designed to have an output voltage of 1350 V (rms)...
5. (10 pts) A transformer is designed to have an output voltage of 1350 V (rms) when the primary coil is connected to a 150V (rms) source. (i) Is this a step-up or step-down transformer? f there are 2700 turns on the secondary winding (coil), how many turns are required on the primary? (ii) If a load resistor across the secondary draws a peak current of 1.5.A, what is the peak and the rms current in the primary?
transformers
Learning Goal: To understand the concepts explaining the operation of transformers.One of the advantages of alternating current (ac) over direct current (dc) is the ease with which voltage levels can be increased or decreased. Such a need is alwayspresent due to the practical requirements of energy distribution. On the one hand, the voltage supplied to the end users must be reasonably low for safety reasons(depending on the country, that voltage may be 110 volts, 220 volts, or some other value...
The primary of an ideal iron-core transformer with a 10:1 (primary:secondary) turns ratio is connected to...
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 AC adapter for a telephone answering machine uses a transformer to reduce the line voltage...
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 6.00 V. The RMS current delivered to the answering machine is 600 mA. If the primary (input) coil of the transformer has 360 turns, then how many turns are there on the secondary (output) coil? Tries 0/20 What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? Tries 0/20 What...
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage...
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 5.00 V. The RMS current delivered to the answering machine is 380 mA. If the primary (input) coil of the transformer has 960 turns, then how many turns are there on the secondary (output) coil? Submit Answer Tries 0/20 What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? Submit...
The primary coil of a transformer contains 50 turns.. The primary coil is connected to an...
The primary coil of a transformer contains 50 turns.. The primary coil is connected to an alternative voltage of 5.0 volts. The voltage across the secondary coil is measured 0.5 volts? How may turns does the secondary contain? If the primary current is 2.0 mA (mili-amperes,) what is the secondary current? 1 mA = 10-3 A
A transformer has a primary circuit with 12 coils while the secondary circuit contains 2 coils and has a potential of 8V across it. What is the potential on the primary input of the transformer? Answer: The primary coil of a transformer has 30 turns and 55V across it. What is the potential across the secondary coil which contains 12 turns? Answer:
Two coils shown in the diagram are wound around two iron cores.
The primary coil has 500 turns, self-inductance 7.0 mH and
resistance fo 5.0 ohms. The battery supplies an EMF of 10.0V. The
secondary has 100 turns and resistance 1.0 ohms. The mutual
inductance of the system is 3.0 mH.
a) What is the time constant?
b) How much current is flowing in the primary after one time
constant?
c) How much back EMF is generated in the primary...
5. (10 pts) A transformer is designed to have an output voltage of 1350 V (rms) when the primary coil is connected to a 150V (rms) source. (i) Is this a step-up or step-down transformer? f there are 2700 turns on the secondary winding (coil), how many turns are required on the primary? (ii) If a load resistor across the secondary draws a peak current of 1.5.A, what is the peak and the rms current in the primary?
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 5.00 V. The RMS current delivered to the answering machine is 380 mA. If the primary (input) coil of the transformer has 960 turns, then how many turns are there on the secondary (output) coil? Submit Answer Tries 0/20 What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? Submit...
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