What is the main function of a transformer?
Q: If you are planning to make an idea charger (step down transformer) with an output of 5.0V when it…
A: The required expression for the required ratio of output to input turns of coils is,
Q: Which particular part of a the motor can be used to identify an "AC motor? O a Split rings O b.…
A: Which particular part of the motor can be used to identify AC motor ?
Q: Why does an electric arc often appear in a switch at the moment it is opened if there is an inductor…
A: electric arc often appear in a switch at the moment
Q: If a solenoid is 10 cm long and has a radius of 1 cm, how many coils would be necessary to make an…
A:
Q: Give difference between AC generator and DC generator.
A: Sl. No.Differentiating PropertyAC GeneratorDC Generator1DefinitionAC generator is a mechanical…
Q: A transformer has an input of 6 VV and an output of 72 VV . If the input is changed to 12 VV , find…
A: solution:
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: TRUE or FALSE: In an ideal step-down transformer, the current at the secondary is lower compared to…
A:
Q: Why doesn’t a transformer work with direct current? Why is ac required?
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Q: Does the generator at power station produce dc or ac?
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Q: How can the antenna be driven by an AC circuit?
A: What is an Antenna? An antenna is a metallic structure that captures and/or transmits radio…
Q: A transformer has 500 turns on its secondary and 100 turns on its primary. The primary is connected…
A: a) Let the primary winding’s number is Np and the secondary winding’s number is Ns. The voltage in…
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 with more primary turns than secondary turns will produce a secondary voltage higher…
A:
Q: How does the self-inductance per unit length near the center of a solenoid (away from the ends)…
A: The expression for the self inductance , L=μN2Al
Q: a potentian transformer is desired to allow safe reading on a 4600 v line. what voltage ratio of…
A: Safe voltage= Vmax= 4600 volt secondary voltage of transformer = 120 volt (generally considered…
Q: oltage of 120 volts and a secondary voltage of 18 volts. The primary excitation current is 0.25 amp.…
A: Given;- A transformer has a primary voltage of Vprimary = 120 volts A secondary voltage of…
Q: When 9 A of AC current at 123 V flows in the primary coil of an ideal transformer, how many amps at…
A:
Q: Can a transformer be operated by a DC waveform at its input? What would be the secondary voltage of…
A: Can a transformer be operated by a DC waveform at its input? What would be the secondary voltage of…
Q: Why does AC power alternate ?
A: Ac power is defined as a flow of charge that exhibits a periodic change in direction. This is known…
Q: Explain the term mutual inductance.
A: Mutual inductance between the two coils is known as the property of the coil due to which it is…
Q: 220 V is supplied across 1200 windings of the primary coil of the autotransformer. If 1650 windings…
A: Given Number of turns in primary coil is Np=1650 Number of turns in…
Q: State two disimilarities and two similarities between a dc motor and an ac generator.
A: dc motor and an ac generator have electromagnets and armature etc. and the external circuit of both…
Q: Describe the relationship between the charge and current oscillating between a capacitor and…
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Q: An ideal step-up transformer with turn ratio 1:30 is supplied with an input power of 120 W. If the…
A: According to the ideal transformer, V1V2=N1N2V1=N1N2V2=130210 V=7 V Find the input current.…
Q: Please explain what happens when the efficiency of a transformer increases and when the percentage…
A: 1. A transformer is a device that transfers electrical energy from one circuit to another through…
Q: n the transformer experiment performed in the lab, following coils were used to form a step up…
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Q: List down 3 ways in increasing the EMF of induced coil.
A: EMF is directly related to magnetic flux through the coil so if we increase magnetic flux per unit…
Q: How does a transformer keep the circuits oscillations going? And how can the frequency in a coil…
A: Given : To explain how does a transformer keep the circuits oscillations going? And how can the…
Q: A student needs to reduce the percent power loss by 100 times by using a transformer. What would the…
A: Power loss (Ploss) = I2R ...... (1) Here, I is the current and R is resistance As I = P/V .......…
Q: Does a transformer work when a DC current flows through the primary? If not, why?
A: A transformer will not work if DC current is flown through the primary coil. Ac current is used to…
What is the main function of a transformer?
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