ELE100 Series Circuit Test 1

If a series circuit has resistor values of 27 W, 56 W, and 82 W, the total resistance is _______________ ohms.

165

A device that is designed to open and disconnect a circuit in the event of excessive current is a

Circuit breaker

A series circuit has a total resistance of 180 W and an applied voltage of 120 V. What is the current flow?

0.667A

Which of the following formulas is the general voltage divider formula?

EX = (RX / RT) ET

Using the figure calculate Rt = ohms, It = mA, and Pt = W.

Rt=800, It=50, Pt=2

A three-resistor circuit has a total power of 25 W. Two of the resistors dissipate 10 W and 5 W respectively. How much power does the third resistor dissipate?

10W

A series circuit has two resistors. The resistors dissipate 10 W and 15 W. What is the total power dissipation of the circuit?

25W

The two resistors in a series circuit have voltages of 25 V and 60 V. The applied voltage is

85V

A series circuit has a total resistance of 240 W and a current flow of 4 A. What is the applied voltage?

960V

An electrical connection made by connecting to the frame of electrical equipment is called a(n) _____ ground.

Chassis

A series circuit is a circuit that has only one path for _____ flow.

Current

In a series circuit, the resistors have voltages dropped across them that are proportional to their resistance values. If connections are made to various points in the circuit, different voltages can be obtained. This circuit is called a(n) voltage _____.

Divider

An electrical connection made by connecting a rod or pipe imbedded in the soil is called a(n) _____ ground.

Earth

A device that is designed to open and disconnect a circuit in the event of excessive current is a

Fuse

A point which is a common connection for other parts of a circuit is called a _____ point.

Ground

The current flow, resistor voltages, and / or resistances in a series circuit can be found by using _____ law.

Ohm's

R2 = k ohms, the current through I2 = mA, and the voltage drop across E2 = V.

R2=1.8, I2=20, E2=36

A circuit that has only one path for current flow is a _____ circuit.

Series

In a series circuit with two resistors, the total resistance is equal to the _____ of the two resistors.

Sum

This Figure is a seris circuit used as a ____________ circuit.

Voltage divider

The amount of _____ across a resistor is proportional to its resistance.

Voltage drop

The polarity of the voltage across a resistor depends on the direction of current flow through the resistor. The end of the resistor into which current enters is assigned the polarity of

Negative

Using the figure, assume a current of 5 mA. If R1 is 4 k ohms, what is Rt = k ohms, R2 = k ohms, R3 = k ohms, and R4 = k ohms.

Rt=40, R2=6, R3=10, R4=20

Devices that will open and disconnect a circuit in the event of excessive current are the fuse and circuit breaker?

T

A two-resistor series circuit has an applied voltage of 100 V. The voltage across one of the resistors is 40 V. The voltage across the other resistor is

60V