Say I want a transformer to step up voltage from 120 V to 300 V. If the primary coil has 1000 turns, how many turns would the secondary coil have?
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Say I want a transformer to step up voltage from 120 V to 300 V. If the primary coil has 1000 turns, how many turns would the secondary coil have?
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- Calculate the cost (in cents) of using a 200-watt television for 30 days if turned on 2 hours per day and if electricity costs 10 cents per kilowatt-hour.Resistance of a coil that uses 1800 watts is 60 ohms. What is the current of the circuit? Round the answer to the nearest hundredth.How much does it cost to run a 240V dryer with 10Ω of resistance for 45 minutes if electricity costs 20 cents per kWh? Express your answer in dollars.
- The transformer on a model train set steps down the voltage from 120 Volts to 9.0 Volts. The number of turns on the secondary coil is 30. The train draws 6.0 A of current on the secondary coil. What is the current draw on the primary coil? 0.45 A 180 A 80 A 13.5 AA transformer is designed for use in a neon sign. The input voltage is 120 V and the output needs to be 3000V. The output current is 50mA. 1. If 100 turns are placed on the primary coil, how many turns will need to be on the secondary coil? 2. What is the current in the primary set of coils? 3. What is the power output of the transformer?