Two light bulbs, one with a resistance of 30 ohms and
the other 40 ohms, are arranged in two different circuits with a
120 volt source.
A] The two bulbs are first connected in parallel to the
source.
i. Draw a schematic of the circuit
–clearly labeled.
ii. Determine the current, voltage and power through each
bulb.
B] The two bulbs are now connected in series to the
source.
i. Draw a schematic of the circuit
–clearly labeled.
ii. Determine...
An unbalanced wye connected wye connected load of three
phase resistances with Ra=60 ohms,
Rb=40 ohms and
Rc=80 ohms is connected to a 440V,
negative sequence, balanced 3 phase, 3 wire supply. Calculate the
complex power using the method of symmetrical
components.
Please show all steps and clearly show all
answers.
A
RLC series circuit has a resistance of 104 ohms, inductance 0.7
H,and Capacitance 6.0 µF. If the amplitude of the voltage supplied
by the ac source is 170 V, and the frequency is 60 Hertz, calculate
the rms current.
A
3.5 current source is connected to a 220 ohms load. The source
resistance is 6kohms. Solve for the equivalent voltage source (E
and Rs) for this practical source.
This problem has 3 parts.
A single resistor with resistance R ohms is connected to a
battery.
part a - If the single resistor is replaced with 2 identical
resistors each of R ohms connected in series, will the battery have
to provide more power, less power or the same? Explain your choice,
include any equations that apply.
part b If instead of connecting the two resistors in series,
they are connected in parallel, will the battery have to provide...
A coil of inductance 120 mH and unknown resistance and a 1.0 μF
capacitor are connected in series with an alternating emf of
frequency 950 Hz. If the phase constant between the applied voltage
and the current is 78°, what is the resistance of the coil?
Three resistors connected in parallel have an equivalent
resistance of 1Ω. If two of the resistance values are 2Ω and 6Ω,
then the third resistance value must be9Ω.8Ω.6Ω.3Ω.2Ω.
Two parallel rails with negligible resistance are 10.0 cm apart
and are connected by a resistor of resistance R3=5.00Ω .
The circuit also contains two metal rods having resistances of
R1= 10.0 Ω and R2 = 15.0 Ω
sliding along the rails (Fig. P31.31). The rods are pulled away
from the resistor at constant speeds of v1= 4.00 m/s and
v2= 2.00 m/s, respectively. A uniform magnetic field of
magnitude B =0.0100 T is applied perpendicular to the plane of the
rails. Determine...
Many resistors are connected purely in parallel to a 17 battery
and the power output of the battery is 169 Watts. One resistor is
removed (but the rest remain connected in parallel to the same
battery) and the current coming out of the battery is 3.3 amps with
that resistor removed. What was the value of the resistance of the
removed resistor in Ohms?