If the voltage of the primary coil in a transformer is twice that of the voltage in the secondary coil, then the current in the secondary coil is ____ that of the primary coil.   Question 4 options:   four times   twice as much   the same as   1/2 as much   1/4 as much   None of the other responses are correct.

Q: Here you see the circuit board that I passed around in class one day, the control board from my…

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Q: In the transformer experiment performed in the lab, following coils were used to form a step down…

A: Given: The input voltage to the primary coil is Vp = 5.76 V The input current flow through the…

Q: You have a transformer with a primary current of Ip = 15 A and a primary voltage of Vp = 2050 V. The…

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Q: The power adapters of devices we use contain transformers. In one such adapter, the input to the…

A: Given that-Primary Current, IP= 1.8 APrimary Voltage, VP= 120 VoltSecondary Current, IS= 50 turnsWe…

Q: The primary coil of a transformer has N1 = 250 turns, and its secondary coil has N2 = 1500 turns. If…

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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: 4. A 6.0W ideal transformer is plugged into a 120 VAC wall outlet. The primary coil of the…

A: See below

Q: Question 8 900 turns 2200 400 2 500 Ω turns 3.3 k2 Calculate all voltages and all currents in this…

A: Given data: The primary turns is Np=900. The secondary turns is Ns=2200. The voltage drop across…

Q: Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A…

A: If mutual inductance M then current  in one coil I will causes the flux ϕ in another coil as  ϕ=MI…

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: Suppose that when you move a magnet through a 34.5-turn coil at a certain speed, a voltage of 81.8…

A: According to Faraday's second law Induced emf = rate of change of magnetic flux

Q: Calculate the voltage output by the secondary winding of a transformer if the primary voltage is 230…

A: Given that-The voltage of primary winding, V1= 230 VoltNumber of turns of secondary winding, N2= 290…

Q: V= ? 17,000 V 21. From the energy conservation point of view, the input power of the first…

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Q: Problem 8: Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once…

A: Part (a)Find the relation between current, power and voltage.

Q: A scale train transformer is plugged into 120 V ac and draws 0.35 A while supplying 7.5 A to the…

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Q: QUESTION 1 A plug-in transformer supplies 7.3 V to a video game system. How many turns are in its…

A: Given that:-Tramsformer supplies 7.5 Volt to a video game system.Vout=7.5 VoltIf the input voltage…

Q: A transformer consists of 275 primary windings and 854 secondary windings. Part A If the potential…

A: A transformer contains primary and secondary coils. Windings are basically the number of turns in…

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: In a transformer, two coils are wound around a toroidal iron core. Answer True or False. True A…

A: A transformer is an electrical device that is used to transfer electrical energy between two or more…

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: With the specific variables mentioned below, what is the number of secondary loops (Ns) of the…

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Q: A transformer has 900 turns on its secondary and 100 turns on its primary. The primary is connected…

A: (a) The voltage output of the secondary coil is VS=NSNPVP=90010014 V=126 V Therefore, the output…

Q: Current Attempt in Progress Reconfiguring a Transformer. You and your team are exploring an…

A: Step 1:Step 2:Step 3:Even 1176 turns is also acceptable answer.Step 4:

Q: The primary coil of a step-down transformer is connected across the terminals of a standard wall…

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Q: The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air…

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Q: A step-up transformer contains 120 turns in the primary coil and 720 turns in the secondary coil. If…

A: Given, A step up transfer , Number of turns in primary coil , NP = 120 Number of turns in secondary…

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: ycle generator rotates at 1550 rad/s, producing an 18.0 V peak emf. It has a 1.00 cm by 3.00 cm…

A: Given:- A bicycle generator rotates at  ω=1550 rad/s, The peak emf is given as v = 18.0 V  The…

Q: The primary coil of a transformer is connected to a standard wall socket. A resistance R is…

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Q: In a step-up transformer, the voltage in the secondary coil is ________ than the voltage in the…

A: Here talking about the step up and step down transformer . We have to fill the blanks from the below…

Q: The power adapters of devices we use contain transformers. In one such adapter, the input to the…

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Q: The battery charger for cellphone contains a step-down transformer with a turns ratio 1:20, so that…

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Q: Consider a transformer where the secondary winding is connected in series to a resistor with…

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Q: A 5 kW coil has a length of 45 cm. If a length 5 cm is cut from the coil, what power (in kW) is…

A: Given data:  Original Length of coil (L0) = 45 cm Power (P) = 5 kW Length cut from the coil (x) = 5…

Q: An ideal step-down transformer operates at a 7 kV line and a load current of 140 A. The ratio of…

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Q: Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly…

A: Consider the mass of the each disk is m ,  velocity of orange disk (u)= 3.0 m/s velocity of the…

Q: A step-up transformer has 23 turns on the primary coil and 750 turns on the secondary coil. If this…

A: Number of turns in the primary coil is Number of turns in the secondary coil is Output voltage is…

Q: w many turns are in its secondary coil, if its input voltage is 120 V and the primary coil has 405…

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Q: An inductor L = 0.025 H and a 40 Ω resistor are connected in series to a 5 volt battery and a…

A: Given data:    L=0.025 H  R=40 Ω   V=5.0 Volt

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.