A circuit consists of three resistors in series, with values 200 ohms, 100 ohms and 60 ohms. The circuit is connected to a battery with an output of 36 volts.

a. What is the current flowing in the series circuit?

b. The battery is replaced by a sine wave source with a frequency of 60.0 Hz and a peak voltage 36.0 volts. What is the RMS current flowing in the series circuit?

c. In the circuit described in part (b) above, how much power is dissipated in the 200 ohms resistor?

d. A telephone handset has a resistance of 600 ohms. It is connected to the local telephone exchange at a distance of 5 km by a twisted pair that has a loop resistance of 200 ohms per km. The telephone exchange has a 48.0 V battery that is connected to the twisted pair through a 400 ohms resistor. What is the DC current through the handset when it is off-hook?

Solution Preview

Please see the attachment as well for clear symbols and drawing in (d).

(a) As it is a series circuit with just resistance we can say that by Ohm's law

Voltage (V) = Current (I) x Total Resistance (R (tot))

i.e. V = IR(tot) (1)

We are asked to find the current so we rearrange (1) to make I the subject when we do this we get (2).

I = V/R(tot) (2)

Now total resistance is sum of series resistance so we can deduce

R(tot) = 100 + 200 + 60 Ohms = 360 Ohms

Now we ...

Solution Summary

A series circuit is examined with three given series pure resistances. A battery is connected of known DC voltage and the current flowing in the series circuit deduced. A sine wave generator of know amplitude and frequency replaces the battery and the RMS current that flows and the power dissipated is deduced. A telephone line of known parameters is given and the DC current that flows through the handset for such a system is deduced.

Given the following ElectricalCircuit, which statement below is true?
1. The voltage across R3 equals the battery voltage
2. The current through R2 is greater than the current through R1.
3. The current through R1 equals the current through R3.
4. The voltage across R5 equals the voltage across R4.
5. The current throug

Capacitive reactance X_c in an electricalcircuit to an alternating current is given by:
(Please see attached)
where f is frequency of the current and C is capacitance of the circuit.
Solve for f.

Representative problems:
1. A function is continuous but its first derivative has a finite discontinuity at the origin. What is your estimate of the rolloff rate?
2. A system is characterized by a transfer function H(s) = 1 / s+5 . What is the natural response of the circuit?
3. If a function is even, then its Fourier tran

A resistor R1 is connected in series with a parallel connection of resistors R2 and R3. The combination is connected across a battery of emf, ¦Î, with internal resistance, r. If R1 = 3.00¦¸, R2 = 3.00¦¸, R3 = 6.00¦¸, ¦Î = 6.00 V, and I = 1.00A, find Rp, the equivalent parallel resistance, Rt the total circuit resistanc

Consider the following circuit. As shown, lossy current source drives 1Kohm load by means of a voltage divider circuit. It is desired to have 5mA flow through the load. R1 and R2 can be assigned any value.
Part One: What is the smallest value that R2 can have?
Part Two: What is the largest value that R1 can have?

1. For the circuit given in FIGURE 1 the power factor is 0.72 lagging and the power dissipated is 375 W.
FIG. 1 (see attachment)
Determine the:
(i) apparent power
(ii) reactive power
(iii) the magnitude of the current flowing in the circuit
(iv) the value of the impedance Z and state whether circuit is inductive or capac

A survey of 100 students has the following results :
70 of the students stated they are pursuing at least one of the degrees:
Mathematics, Computer Science, or ElectricalEngineering. 40 were pursuing a Mathematics degree, 50 were pursuing a Computer Science degree, and 25 were pursuing an ElectricalEngineering degree. 23 stu

Two resistors are placed in parallel in an electricalcircuit. Which of the following statements are true?
-Only One answer can be true-
a- the net resistance of the pair is greater than the resistance of the largest one
b- the net resistance of the pair is equal to the average of the two resistances
c- the net

Please see attached picture and solve all parts using superposition only. Find the power dissipated or absorbed by the voltage source V2. Does V2 release or absorb power?
Please refer to the attachment.