Question

An AC power generator produces 20 A (max) at 30000 V (rms). The voltage is stepped down to 10000 V by an ideal transformer and the energy is transmitted through a power line which has a resistance of 50 ohms. What energy is dissipated as heat in the power line in 10 hours?. Show step by step solution

Answer #1

An AC power generator produces 51 A (rms) at 3,600 V. The
voltage is stepped up to 100,000 V by an ideal transformer, and the
energy is transmitted through a long-distance power line that has a
resistance of 114 Ω. What percentage of the power delivered by the
generator is dissipated as heat in the power line?
%

An AC power generator produces 54.5 A (rms) at 3630 V (rms).
(a) Find the power (kW) produced by this generator.
(b) If this power is transmitted through a long-distance power
line that has a resistance of 11.3 ohms, find the power (kW)
dissipated as heat in the power line.
If the voltage of the power generator is stepped up to 175 kV by
an ideal transformer before being transmitted, find (c) the current
(A) in the power line and...

A power plant produces an rms voltage of Vp = 12.0 x 10^3 V and
an rms current of Ip = 180 A. The rms voltage is stepped up to 300
x 10^3 V by a transformer before it is transmitted to a substation.
The resistance of the transmission line is between the power plant
and the substation is R = 1000Ω.
a) What is the turns ration Ns/Np for this transformer?
b )What is the rms current in the...

An AC generator supplies an rms voltage of 230 V at 60.0 Hz. It
is connected in series with a 0.250 H inductor, a 5.60 μF capacitor
and a 366 Ω resistor.
What is the impedance of the circuit?
Tries 0/20
What is the rms current through the resistor?
Tries 0/20
What is the average power dissipated in the circuit?
Tries 0/20
What is the peak current through the resistor?
Tries 0/20
What is the peak voltage across the inductor?...

An AC generator supplies an rms voltage of 115 V at 60.0 Hz. It
is connected in series with a 0.700 H inductor, a 3.00 μF capacitor
and a 266 Ω resistor.
1. What is the impedance of the circuit? Tries 0/20
2. What is the rms current through the resistor? Tries 0/20
3. What is the average power dissipated in the circuit? Tries
0/20
4. What is the peak current through the resistor? Tries 0/20
5. What is the...

1.An AC generator supplies an rms voltage of 220 V at 60.0 Hz.
It is connected in series with a 0.750 H inductor, a 3.50 μF
capacitor and a 211 Ω resistor. What is the impedance of the
circuit? You have to calculate the impedance for a series
RLC-combination.
2. What is the rms current through the resistor? You can use a
similar equation fo Ohm's law for an RLC circuit.
3. What is the average power dissipated in the...

An AC adapter for a telephone answering machine uses a
transformer to reduce the line voltage of 120 V to a voltage of
4.00 V. The RMS current delivered to the answering machine is 350
mA. If the primary (input) coil of the transformer has 720 turns,
then how many turns are there on the secondary (output) coil?
What is the power drawn from the electric outlet, if the
transformer is assumed to be ideal?
What is the power drawn...

An AC adapter for a telephone answering machine uses a
transformer to reduce the line voltage of 120 V to a voltage of
4.00 V. The RMS current delivered to the answering machine is 660
mA. If the primary (input) coil of the transformer has 600 turns,
then how many turns are there on the secondary (output) coil?
What is the power drawn from the electric outlet, if the
transformer is assumed to be ideal?
What is the power drawn...

In the circuit shown in the figure below, the ideal generator
produces an rms voltage of 115 V when operated at 60 Hz. What is
the rms voltage between the following points? Take R = 40
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A transformer connected to a 120 −V ac line is to supply 12.0 VV
(rms) to a portable electronic device. The load resistance in the
secondary is 5.20 ΩΩ .
- What should the ratio of primary to secondary turns of the
transformer be, What rms current must the secondary supply?
- What average power is delivered to the load, What resistance
connected directly across the source line (which has a voltage of
120 −V) would draw the same power...

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