A transformer is used to step voltage down. That is, the output voltage is lower than...
A transformer is used to step voltage down. That is, the output voltage is lower than the input voltage. What can we say about the current?
Not enough information is given.
The output current is less than the input current.
The output current is equal to the input current.
The output current is greater than the input current.
Homework Answers
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A transformer is used to step voltage down. That is, the output
voltage is lower than...
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?
In a step-down transformer, is the ratio of the number of input coils to the number...
In a step-down transformer, is the ratio of the number of input coils to the number of output coils greater than for a step-up transformer? Explain your reasoning. a. Yes, for a step-down transformer the output voltage is more than the input voltage. b. No, for a step-down transformer the input voltage is more than the output voltage.
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)?
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...
The step-down transformer in a local neighborhood reduces the voltage from a 1,680 V line to...
The step-down transformer in a local neighborhood reduces the voltage from a 1,680 V line to 120 V. (a) If there are 175 loops on the secondary, how many are on the primary coil? ______ loops (b) What current does the transformer draw from the line if the current in the secondary is 36.0 A? ________ A (c) What are the power input and output? Input: _______ W Output: ________ W
Question # 10 (Ch. 29) The output voltage of a 75 W transformer is 12 V,...
Question # 10 (Ch. 29) The output voltage of a 75 W transformer is 12 V, and the input current is 22 A, (a) is this a step-up or step-down transformer? (b) By what factor is the voltage multiplied by? (6 pts)
Will rate for answer with work! A step-down transformer is used for recharging the batteries of...
Will rate for answer with work!
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 3:46. When used with 120-V (rms) household service, the transformer draws an rms current of 100 mA. (a) Find the rms output voltage of the transformer. V (b) Find the power delivered to the CD player. W
will rate, thanks! A step-down transformer is used for recharging the batteries of portable devices. The...
will rate, thanks!
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N/N, for a particular transformer used in a CD player is 3:46. When used with 120-V (rms) household service, the transformer draws an rms current of 240 mA. (a) Find the rms output voltage of the transformer V (b) Find the power delivered to the CD player. w
The adaptor used to charge most portable electronic devices contains a small step-down transformer, which converts...
The adaptor used to charge most portable electronic devices
contains a small step-down transformer, which converts the 120 V
(rms) household voltage into a less dangerous and more useful
voltage. Suppose that the transformer has a winding ratio of 13:1
and draws 0.323 A of current (rms) from the wall outlet.
The adaptor used to charge most portable electronic devices contains a small step-down transformer, which converts the 120 V (rms) household voltage into a less dangerous and more useful...
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1...
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 3:46. When used with 120-V (rms) household service, the transformer draws an rms current of 140 mA. (a) Find the rms output voltage of the transformer. V (b) Find the power delivered to the CD player. W
Question # 10 (Ch. 29) The output voltage of a 75 W transformer is 12 V, and the input current is 22 A, (a) is this a step-up or step-down transformer? (b) By what factor is the voltage multiplied by? (6 pts)
Will rate for answer with work!
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 3:46. When used with 120-V (rms) household service, the transformer draws an rms current of 100 mA. (a) Find the rms output voltage of the transformer. V (b) Find the power delivered to the CD player. W
will rate, thanks!
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N/N, for a particular transformer used in a CD player is 3:46. When used with 120-V (rms) household service, the transformer draws an rms current of 240 mA. (a) Find the rms output voltage of the transformer V (b) Find the power delivered to the CD player. w
The adaptor used to charge most portable electronic devices
contains a small step-down transformer, which converts the 120 V
(rms) household voltage into a less dangerous and more useful
voltage. Suppose that the transformer has a winding ratio of 13:1
and draws 0.323 A of current (rms) from the wall outlet.
The adaptor used to charge most portable electronic devices contains a small step-down transformer, which converts the 120 V (rms) household voltage into a less dangerous and more useful...
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