A silver wire of radius 3.00 mm is used to make a coil. The coil should draw 10.0 A when connected to a 120 V supply. Estimate the length of the silver wire required.
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- A flat circular coil has 80 turns of diameter 20 cm with a total resistance of 40 ohm. The plane of the coil is perpendicular to a uniform field. At what rate should the field change for the thermal power dissipated in the coil to be 2 W? Needs Complete typed solution with 100 % accuracy.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 turnsA transformer has 900 turns on its secondary and 100 turns on its primary. The primary is connected to a 18-V source. (a) What is the voltage output of the secondary? V(b) If 3 A flows in the primary coil, how much current is there in the secondary coil? A
- A plug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 423 turns? turns(b) What is its input current when its output is 1.33 A? AHow many turns of wire would be required to make a 150 mH inductance out of a 20.0 cm-long air-filled coil with a diameter of 4.8 cm?The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The turns ratio of the transformer is 45:1. The primary coil is plugged into a standard 120-V outlet. The current in the secondary coil is 1.9 x 10-3 A. Find the power consumed by the air filter.
- A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 302.1 mV. If the number of turns in the primary coil is 35753575, calculate the number of turns NS on the secondary coil of the adapter transformer.Question in the imagesThe primary coil in an ideal transformer has 1000 turns of wire and an emf of 100 V. The secondary coil has an emf of 10 V. How many turns of wire does the secondary coil have? 100 1000 10,000 100,000