Can a transformer be used with dc? Explain. What happens if a transformer designed for 120 V ac is connected to a 120 V dc line?

Q: A transformer has a primary voltage of Vp= 600 V and primary current of Ip= 2.5 A. If the measured…

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Q: The output current of a transformer in which the voltage is stepped down is usually higher than the…

A: In case of step-down transformer, number of turns in secondary coil is less than that of number of…

Q: A step-down transformer produces a voltage of 6.0 V across thesecondary coil when the voltage across…

A: Given data The initial voltage across the secondary coil of a step-down transformer is: VS_1 = 6 V…

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: what will be the voltage output of the secondary? what current flows in the secondary circuit? now…

A: Given: Number of turns in the primary  Np= 100           Number of turns in the secondary  Ns = 1000…

Q: A student builds a step-down transformer with windings (in no particular order) of 40 and 120. If…

A: The given data are: Here, Np denotes the primary turns, Ns denotes the secondary turns, and Ip…

Q: From time to time, transformers explode. If your neighborhood has ever lost power all at once, this…

A: We are given voltage in primary and secondary coils. We are given turns in secondary coil. We first…

Q: Why doesn’t a transformer work with direct current? Why is ac required?

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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: Explain why a transformer works for AC currents but not for DC currents

A: transformer work only on ac supply because A transformer needs an alternating current that will…

Q: Why we use AC for power transmission over long distances?

A: Given: A usage of AC of power transmission in long distances as,

Q: in the secondary coil is 1500 and the current in the

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Q: A transformer has an input of 110 AC volts, with 100 turns on the primary and 10 turns on the…

A: Given, No. of primary turns Np = 100No. of secondary turns Ns = 10Input voltage Vp = 110V (AC…

Q: A particular transformer has a greater number of turns on the secondary winding than on the primary…

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Q: Explain what causes physical vibrations in transformers at twice the frequency of the AC power…

A: In a transformer, there is a primary section from which input is given and a secondary section from…

Q: A transformer consist of a primary coil connected to a 120 V source that drive 4 A of current…

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Q: Why does a transformer require ac?

A: The working principle of a transformer is mutual induction.

Q: A transformer consists of 275 primary windings and 834 secondary windings. If the potential…

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Q: A transformer has 500 turns in its primary and 300 turns in its secondary. 1200 V ac is connected to…

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Q: A transformer having efficiency of 90% is working on 200 V and3 kW power supply. If the current in…

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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…

Q: An ideal transformer has 600 turns on its primary side and 100 turns on its secondary side. The…

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Q: Will a transformer operate if a battery is used for the input voltage across the primary? Explain.

A: Transformers work on the principle of mutual induction. Mutual induction is the process by which a…

Q: Why do we use AC voltages in our households over DC?

A: AC voltages are used for n households over DC as these are capable of converting voltage level from…

Q: Transformers (cont.) Part E- The primary coil of a transformer has 200 turns and the secondary coil…

A: Since the efficiency is not given, it is considered to be 1

Q: In a transformer, a primary winding has 220V and 1A. If the second winding has 460V, what is the…

A: Given:potential, V1 = 220 VCurrent, I1 = 1 Apotential, V2 = 460 V It is required to find the output…

Q: primary coil of a transformer in a toy electric car has 300 turns and the secondary coil has 30…

A: NUMBER OF TURNS IN PRIMARY COIL , NP = 300NUMBER OF TURNS IN SECONDARY COIL , NS = 30VOLTAGE APPLIED…

Q: A device requires a secondary output voltage of 1400 V at a resistance of 200 Ω. The transformer is…

A: A transformer is an electrical device that is used to convert the ac voltage from one value to…