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 to 9.0 V.
Part C:
The input voltage into a 500 coil transformer is 50 volts. The output voltage of a 1000 coil is 100 volts, what is the relationship between the input and output currents?
Part A:
Number of turns in the transformer is directy proportional to the voltage induced in the coil
Voltage supplied to the charger Vs = ( 1/18 ) * 120 = 6.667 V
Part B:
train requires a voltage of 9.0 V
Primary voltage = 120 V
Part C:
input voltage into a 500 coil transformer is 50 volts
output voltage of a 1000 coil is 100 volts
Hence the Input current is twice the output current in the above stepup transformer
Part A: A transformer with turns ratio (primary/secondary) of 18:1 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 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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