13 A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 354.8 mV. If the number of turns in the primary coil is 1353, calculate the number Ns of turns on the secondary coil of the adapter transformer. Type your answer...
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- (a) What is the resistance of a 220-V ac short circuit that generates a peak power of 96.8 kW? (b) What would the average power be if the voltage were 120 V ac?A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? a. The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A b. The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A c. The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A d. The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A e. The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 AThe electricity supplied through a city power line is transmitted at 14,300 V. On each city block there are one or more neighborhood transformers on utility poles that transform the potential difference to 120 V, as used in homes and businesses. If the number of turns on the primary is 8580 turns how many should be on the secondary? I
- In an ideal transformer, it is known that the primary coil has 200 turns and the secondary coil has 10 turns. A. If the secondary coil has voltage of 10 V what is the voltage in the primary coil? B. When we say that U.S AC voltage is 120 V what does this voltage refer to? Name the voltage.Transformers: Part A- The primary coil of a transformer contains 100 turns; the secondary has 200 turns. The primary coil is connected to a size-AA battery that supplies a constant voltage of 1.5 volts. What voltage would be measured across the secondary coil? zero 0.75 VV 1.5 VV 3.0 V Part B- A transformer is intended to decrease the value of the alternating voltage from 500 volts to 25 volts. The primary coil contains 200 turns. Find the necessary number of turns N_2 in the secondary coil. (Express answer in terms of N_2) Part C- A transformer is intended to decrease the value of the alternating current from 500 amperes to 25 amperes. The primary coil contains 200 turns. Find the necessary number of turns N_2 in the secondary coil. (Express answer in terms of N_2.) Part D- In a transformer, the primary coil contains 400 turns, and the secondary coil contains 80 turns. If the primary current is 2.5 amperes, what is the secondary current I_2? (Express answer in terms…A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 104.2 mV. If the number of turns in the primary coil is 6908, calculate the number of turns Ng on the secondary coil of the adapter transformer. Ns turns
- A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A The number of turns in the secondary coil is 240 and the current in the sign is 2.5 AA particle accelerator sends high-velocity charged particles down an evacuated pipe. Explain how a coil of wire wrapped around the pipe could detect the passage of individual particles. Sketch a graph of the voltage output of the coil as a single particle passes through it.the parallel combination of R, and R2 is connected in series with the parallel combination of R3 and R4. The series-parallel combination is then connected across a 24 V DC power supply. A. Draw the schematic diagram and label the circuit elements. B. Calculate the equivalent resistance of the circuit. |(Ans. Req = 198. 7013 N) C. Find the total current of the circuit, the voltage across each resistor and the current through each resistor.
- A transformer has 1000 turns in the primary coil and 100 turns in the secondary coil. If the primary coil is connected to a 120 V outlet and draws 0.050 A, what are the voltage and current of the secondary coil?A. 1200 V, 0.0050 AB. 1200 V, 0.50 AC. 12 V, 0.0050 AD. 12 V, 0.50 AThe following resistors are connected in a DC circuit: R₁ = 214 2 R₂=182 2 R3 = 335 2 . . a. Calculate the total resistance if each resistor is connected in series. b. Req= BB 2 Ω Calculate the total resistance if each resistor is connected in parallel. Req= 52The charger for a cell phone contains a transformer that reduces 120-V (or 240-V) ac to 5.0. Vac to charge the 3.7-V battery. (It also contains diodes to change the 5.0-Vac to 5.0-Vdc.) Suppose the secondary coil contains 30 turns and the charger supplies 700mA. Calculate: A. The number of turns in the primary coil. B. The current in the primary coil. C. The power transformed.