A step-down transformer with 500 primary turns and 15 secondary turns is used for a rechargeable...
A step-down transformer with 500 primary turns and 15 secondary
turns is used for a rechargeable device. The input voltage is 110V,
while the output current is 0.25A.
a. What is the voltage output, the current input, and the power
(input or output)?
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A step-down transformer with 500 primary turns and 15 secondary
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A step-down transformer is used for a rechargeable phone. a. What is the voltage output of...
A step-down transformer is used for a rechargeable phone. a. What is the voltage output of a transformer used for rechargeable flashlight batteries, if its primary has 400 turns, its secondary 2.5 turns, and the input voltage is 110 V? b. What input current is required to produce a 0.50 A output? c. What is the power input?
Part A: A transformer with turns ratio (primary/secondary) of 18:1 is used to step down the...
Part A: A transformer with turns ratio (primary/secondary) of 18:1 is used to step down the voltage from a 120 V wall socket to be used in a battery charger. What is the voltage supplied to the recharger? Part B: The electric motor in a toy train requires a voltage of 9.0 V. Find the ratio of turns on the primary coil to the turns on the secondary coil in a transformer that will step the 120-V household voltage down...
A transformer has 500 turns in the primary and 50 turns in the secondary. If the...
A transformer has 500 turns in the primary and 50 turns in the secondary. If the input voltage is 120V, what is the output voltage? Answer: V If the transformer has an efficiency of 92%, what is the output current if the input current at 120V is 0.50A? Answer: А
8. Suppose the voltage output of a battery is 10.0V in a series circuit, and the...
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An ideal step-down transformer has a primary coil of 370 turns and a secondary coil of...
An ideal step-down transformer has a primary coil of 370 turns and a secondary coil of 22 turns. Its primary coil is plugged into an outlet with 115 V, from which it draws a current of 0.29 A. (a) What is the voltage in the secondary coil? (b) Calculate the current in the secondary coil? (c) Assuming that the transformer secondary is driving a resistive load, calculate the average power dissipated in the resistor.
A transformer has 500 primary turns and 2200 secondary turns. The input voltage is 120 v...
A transformer has 500 primary turns and 2200 secondary turns. The input voltage is 120 v and the output current is 15.0 A. What is the output voltage and input current assuming 100 percent efficiency?
An ideal step-down transformer has a primary coil of 400 turns and a secondary coil of...
An ideal step-down transformer has a primary coil of 400 turns and a secondary coil of 25 turns. Its primary coil is plugged into an outlet with 110 V(AC), from which it draws an rms current of 0.83 A. 1.)What is the voltage in the secondary coil? 2.)Calculate the rms current in the secondary coil. 3.)Assuming that the transformer secondary is driving a resistive load, calculate the average power dissipated in the resistor.
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A step-up transformer has 23 turns on the primary coil and 800 turns on the secondary...
A step-up transformer has 23 turns on the primary coil and 800 turns on the secondary coil. If this transformer is to produce an output of 5000V with a 14-mA current, what input current and voltage are needed? Input current = .49 A V = ? kV
70. A transformer with a turns ratio (secondary/primary) of 1:18 is used to step down the...
70. A transformer with a turns ratio (secondary/primary) of 1:18 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger?
A transformer has 500 turns in the primary and 50 turns in the secondary. If the input voltage is 120V, what is the output voltage? Answer: V If the transformer has an efficiency of 92%, what is the output current if the input current at 120V is 0.50A? Answer: А
8. Suppose the voltage output of a battery is 10.0V in a series circuit, and the resistances are Ri=4.0012, R2=5.0092, and R3=6.002. a. Draw a diagram of the circuit, and determine the total resistance, the current through each resistor, the voltage drop across each resistor, and the power dissipated by each resistor and the source. 9. Suppose the voltage output of a battery is 10.0V in a parallel circuit, and the resistances are Ri=4.0012, R=5.0002, and R3=6.092. b. Draw a...
A transformer has 500 primary turns and 2200 secondary turns. The input voltage is 120 v and the output current is 15.0 A. What is the output voltage and input current assuming 100 percent efficiency?
70. A transformer with a turns ratio (secondary/primary) of 1:18 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger?
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