2 0. The primary coil of a transformer has N, 4 50 x 10 turns, and...
The primary coil of a transformer has N, = 310 turns, and the secondary coil has N, = 2 020 turns. If the input voltage across the primary coil is Av(t) = 170 cos wt, where Av is in volts and t is in seconds, what rms voltage is developed across the secondary coil? V Need Help? Read It Master It Submit Answer Practice Another Version
The primary coil of a transformer contains 50 turns.. The primary coil is connected to an alternative voltage of 5.0 volts. The voltage across the secondary coil is measured 0.5 volts? How may turns does the secondary contain? If the primary current is 2.0 mA (mili-amperes,) what is the secondary current? 1 mA = 10-3 A
An ideal transformer with 5 turns on the primary and 10 turns on the secondary is shown in the figure. A sinusoidal voltage source having V(t) = 10 sin(100t) volts is connected across the primary and a 1 Ω resistor is connected across the secondary. What is the maximum value of the current in the primary circuit (not the secondary)? (answer is 40 amps)
A step-down transformer has 83 turns in its primary coil and 24 turns in its secondary coil. The primary coil is connected to standard household voltage (rms = 120.0 V, 60.0 Hz). Suppose the secondary coil is connected to a 12.0-Ω resistor. (a) What is the maximum current in the resistor? (b) What is the average power dissipated by the resistor?
The primary coil of a transformer has N1 = 380 turns, and the secondary coil has N2 = 2 250 turns. If the input voltage across the primary coil is Δv(t) = 170 cos ωt, where Δv is in volts and t is in seconds, what rms voltage is developed across the secondary coil? _________ V
A transformer has 1020 turns in the primary and 12 turns in the secondary. (a) Is this a step-up or step-down transformer? (b) If the primary is connected across 120 V rms, what is the open-circuit voltage across the secondary? ( ) V (c) If the primary current is 0.3 A, what is the secondary current, assuming negligible magnetization current and no power loss? ( ) A
1 pts The primary coil of a transformer has 100 loops and is connected to a circuit with 120 volts (primary voltage). What is the output voltage (secondary voltage) if the secondary coil has 50 loops? 60 volts O 240 volts O 100 volts O 50 volts 1 pts Question 18 Question 18 1 pts If the current in the primary coil of the above problem is 2 amps, what is the output current (current in secondary coil)?SEP o 1...
ミstep down transfo mer has 70 turns an its primary coil and 39 turns in its secondary coi The primary coil is connected to standard household voltage (Ems-120.0 v, 60 0 Hz), Suppose the secondary coll is connected to a 12.0-0 resistor (a) What is the maximum current in the resistor? (b) What is the average power dissipated by the resisto? wW
A transformer has a primary coil with 200 turns, and a secondary coil with 2000 turns. The input voltage is 120 V, and it runs at 1800 W. Choose the correct answer. W = ; } = N P= IV Vs=1200V, Ip Vs=1200V. Ip=150A Vs=12000V, Ip=150A Vs=12V. Ip=15A 2: Question 11 (1 point) What is the magnitude of the electric field 3m away from a 2n charge? E - hao, where k = 9x 10°Nm? /C2 9N/C ON/C 6N/C 2N/C
Question 16 1 pts A 50-2 resistor, a 0.1-H inductor, and a 10-uF capacitor are connected in series to a 60-Hz source. The rms current in the circuit is 3 A. Find the rms voltage across the resistor, the inductor, and the capacitor. O 60 V, 80 V,796 V (all rms) O 150 V, 113V,562 V (allrms) O 150 V, 113 V, 796 V (all rms) O 0.06 V, 80 V,562 V (all rms) 1 pts Question 17 In an...