A step-down transformer converts 120 V to 5 V in a phone charger. If the primary coil has 600 turns,
Q: A transformer has 240 windings in its primary coil and 50 in its secondary coil. If the secondary…
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Q: A model electric train requires 12 V to operate. When connected to a household voltage of 120 V, a…
A: Given that voltage in the secondary coil is 12V, voltage in the primary coil is 120V, and turns on…
Q: transformer has an input of 19 V and an output of 52 V. If the input is changed to 85 Vwhat the…
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Q: A transformer is designed to step down the 120V line voltage to 9V. If there are 400 turns on the…
A: Given data The initial voltage is given as V1 = 120 V. The final voltage is given as V2 = 9 V. The…
Q: The primary of a certain transformer has 2.7 turns per volt of applied voltage. How many turns must…
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Q: A transformer has 320,000 turns on it's primary coil and 400 turns on its secondary coil. If 110V…
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Q: The primary coil of a transformer with 954 turns carries an EMF of 2.2. If the secondary coil has…
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Q: A transformer is designed to step down the 220 V. line voltage to 31 V. If there are 1115 turns on…
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Q: An electric heater plugs into a 120 V outlet and uses 1500 W of power. How much current does the…
A: Given: Voltage, V=120 V Power, P=1500 W To find: Current drawn by heater
Q: A transformer with a 120 V input voltage has 2000 turns of wire on the input coil and 197 turns of…
A: The expression for the output voltage is,
Q: A step up transformer has 79 turns in the primary coil and 425 turns in secondary coil. The primary…
A: Given, Number of turns in the primary coil=79turns Number of coil in the secondary coil=425turns…
Q: A transformer with 1820 turns in its primary coil has to decrease the voltage from 5720 V to 220 V…
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Q: What is the Power (Watts) dissipated in a 25 Ohm circuit if it has 3.0 Amps of current?
A: SOlution: Given that current I =3 Amps Resistance r = 25 Ohm the power dissipates
Q: A transformer has an input of 21 V and an output of 44 V. If the input is changed to 74 V, what the…
A: In first case: Input of 21 V Output of 44 V In second case: Input of 74 V Output =? In both…
Q: a transformer has 20 turns in its primary could and 500 turns in its secondary coil. if the primary…
A: calculation
Q: A transformer has an input of 17 V and an output of 46 V. If the input is changed to 76 V, what the…
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Q: A transformer with 1140 turns in its primary coil has to decrease the voltage from 4180 V to 220 V…
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Q: A transformer has an input of 21 V and an output of 50 V. If the input is changed to 85 V, what the…
A:
Q: A step-up transformer has 42 turns in primary coil and 439 turns in the secondary coil. The primary…
A: We know that Vs/Vp = Ns/Np Vs = NsVp/Np
Q: A transformer connected to a 117.58 V line delivers 10.62 V to a secondary circuit. If power drawn…
A: Primary voltage, v = 117.58 VSecondary voltage, V = 10.62 VPower drawn from primary circuit, p =…
Q: An electric water heater uses 3,517 W from a 220 V AC line. What is the peak current, in amps?
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Q: The primary coil of a transformer has 130 turns. The secondary coil has 520 turns. If the secondary…
A: Given: The primary turn of the transformer is 130. The secondary turn of the transformer is 520. The…
Q: How much does it cost to power a refrigerator for 30 days if it is rated at 200 Watts and the power…
A: Electrical energy (E) use equals the power (P) of the object multiplied by the amount of time (t)…
Q: What would the power (Watts) be for a speaker if it draws 3.0 Amps of current when connected to a…
A: Given that, Current I=3.0 A Voltage V=12.0 V The expression for power is given by P=VI=12.0 V3.0…
Q: A transformer has an input of 80 V and an output of 55 V. If the input is changed to 74 V, what the…
A: The initial input of the transformer is Vi = 80 V. The initial output of the transformer is Vo = 55…
Q: a transformer has 40 turns in its primary coil and 600 turns in its secondary coil. if the primary…
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Q: A transformer with primary 510 windings and 5,825 secondary windings has an input voltage of 137 AC.…
A: Given data: Number of primary windings, Np=510 Number of secondary windings, Ns=5825 Input voltage,…
Q: A transformer is designed to step down the 220 V. line voltage to 8 V. If there are 1.753 turns on…
A: Primary Voltage, Vp=220 V Secondary Voltage, Vs=8 V Input coil turns, Np=1.753 Let Ns be the no of…
Q: A transformer is designed to change 120Volt into 14000 volt and there are 300 turns in the primary…
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Q: A transformer with 720 turns in its primary coil has to decrease the voltage from 5280 V to 220 V…
A: Given, The primary coil has 720 turns Voltage decrease from 5280 V to 220 V
Q: A arc welding transformer provides an output voltage of 10,030 V at 53.0 mA with an input voltage of…
A: In a transformer, input power is equal to output power. P1 =P2.
Q: A transformer has 40 turns in its primary coil and 600 turns in its secondary coil. If the primary…
A:
Q: What is the Output Voltage of a battery that expends 7.2J of energy in moving 1C of charge?
A: Energy expended by the battery = 7.2 J charge = 1 C
Q: A step-down transformer is to be used to convert an ac voltage of 120 V to 5 V to power an electric…
A: Given, a step down transformer.voltage across the primary coil =120 Vvoltage across the secondary…
Q: A transformer has a voltage input of 120 V and an output of 1500 V. If the primary coil has 200…
A:
Q: sformer has an
A: Given: Input voltage is 19 V Output voltage is 52 V Input has changed to 85 V
Q: A power station generates electricity at 25,000 V, which is then stepped up to 500,000 V using a…
A: Number of turns in primary coil is The primary voltage of the transformer is The secondary voltage…
Q: What is the current flowing in the coil when the applied voltage in a motor resistance of 3.4Ω is…
A:
Q: A step-down transformer, with 75 turns in the primary coil, is connected to a 120-V line.…
A: Using the relation, NsNp=VsVp
how many turns are in the secondary coil?
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