ELE100 Combination Circuit Test 2

The voltage drop across any branch of a parallel circuit is the same as the

applied voltage

When measuring resistance the power must be ________.

both b & c

A combination circuit is a circuit that contains

both series and parallel components

In a series circuit the _______________ is the same at any point in the circuit.

current

A simple parallel circuit is a circuit that contains

only parallel components

One of the steps that occurs frequently during combination circuit solutions is _____ the circuit into a simpler circuit.

Redrawing

Solving combination circuits includes a step in which you _____ the circuit to a simpler circuit.

Reduce

When measuring current in a parallel circuit the meter must be connected in _______ with that branch.

Series

How is current affected by a doubled resistance when voltage remains the same? Current Decreases

T

Is the total resistance of a parallel circuit the reciprocal of the sum of the reciprocals of the branch resistances?

T

R1 = 15 ohms, R2 = 300 ohms, and R3 = 900 ohms, and 240 V is applied between A and B. What is the current flow through R1?

1

Use figure 6, assume It = 2.1 A, R1 = 140 ohms, R2 = 600 ohms, R3 = 900 ohms, and R4 = 250 ohms. Calculate Rt = ohms , Et = V, Pt = W, Er1 = V, Er2 = V, Er3 = V, Er4 = V, Ir1 = Amps, Ir2 = mA, Ir3 = mA, Ir4 = mA, P1 = Watt, P2 = W , P3 = Watt, P4 = Watt.

119, 250, 525, 250, 188, 61, 61.5, 1.78, 314, 68, 246, 445, 59, 4, 15

Using figure 4 find Et = V, Rt = ohms, I1 = I2 = mA, E3 = V, and E4 = V.

240, 240, 400, 90, 150

R1 = 80 ohms, R2 = 100 ohms, and R3 = 400 ohms, and 480 V is applied between A and B. What is the total current flow?

3

R1 = 240 ohms, R2 = 300 ohms, and R3 = 1200 ohms. What is the resistance between A and B?

480

Using figure 5 Assume Et = 240 V, R1 = 180 ohms, R2 = 500 ohms, R3 = 900 ohms, and R4 = 600 ohms. Calculate Rt = ohms, It = mA, E1 = V, E 2 = V, E3 = V, E4 = V, I2 = I3 = mA, and I4 = mA.

600, 400, 72, 60, 108, 168, 120, 280

Give the three power formulas.

E2/R, I2 R, E * I

Give the three forms of Ohm's law.

E=IxR, I=E/R, R=E/I

In a series circuit is the total current the sum of all the resistive currents?

F

In a combination circuit, to identify which paths are series and which paths are parallel, you should

Trace the current paths