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Honors Semiconductor 1: Electronics 1, 1.2, 1.3 Study Guide

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.

Electricity is defined as the flow of (__________).

a)

electrons

b)

protons

c)

neutrons

d)

atoms

2.

Electric charges come in two types: (Positive) and (__________).

a)

negative

b)

neutral

c)

magnetic

d)

electric

3.

Protons carry a (positive) charge, while electrons carry a (__________) charge.

a)

negative

b)

neutral

c)

positive

d)

magnetic

4.

The smallest, fixed quantity of charge is the fundamental unit of charge, q, with a value of (__________).

a)

q=1.602×10−19 coulombs (C)

b)

q=9.109×10−31 coulombs (C)

c)

q=6.022×10^23 coulombs (C)

d)

q=3.00×10^8 coulombs (C)

5.

Based on Coulomb's Law, like charges (__________), and opposite charges (__________).

a)

repel, attract

b)

attract, repel

c)

repel, repel

d)

attract, attract

6.

Materials that allow electricity to pass through them with little resistance are called (__________).

a)

conductors

b)

insulators

c)

semiconductors

d)

resistors

7.

Materials that do not allow electricity to pass through them easily are called (__________).

a)

inductors

b)

conductors

c)

semiconductors

d)

resistors

8.

Materials with conductivity between conductors and insulators, using both electrons and (__________) to carry charge, are known as (__________).

a)

holes, semiconductors

b)

ions, superconductors

c)

protons, insulators

d)

atoms, conductors

9.

Ohm's Law is expressed by the formula: V = I x (__________).

a)

R

b)

C

c)

P

d)

T

10.

In this formula, V stands for voltage, I stands for current, and R stands for resistance.

a)

volts, amps, ohms

b)

volts, watts, ohms

c)

volts, amps, joules

d)

volts, coulombs, ohms

11.

Current and voltage are (__________) when resistance remains constant.

a)

directly proportional

b)

inversely proportional

c)

not related

d)

equal

12.

Current and resistance are (__________) when voltage remains constant.

a)

inversely proportional

b)

directly proportional

c)

equal

d)

unrelated

13.

Watt’s Law is used to calculate (__________) in a circuit, with the basic formula P=I×V.

a)

power (wattage)

b)

current (amperage)

c)

resistance (ohms)

d)

voltage (volts)

14.

Power is the rate at which (____) is done or energy is transferred in an electrical circuit.

a)

work

b)

force

c)

current

d)

voltage

15.

Voltage is always a difference in electrical potential between (______).

a)

two points

b)

two wires

c)

two batteries

d)

two circuits

16.

The voltage at a single point measured relative to a common reference point (like ground) uses (___singlescript notation___).

a)

singlescript notation

b)

doublescript notation

c)

phasor notation

d)

matrix notation

17.

Comparing voltages between any two specific points, without assuming a common reference, requires (___Doublescript notation___).

a)

Doublescript notation

b)

Single-script notation

c)

Matrix notation

d)

Vector notation

18.

Kirchhoff’s Current Law (KCL) states that the sum of currents entering a junction must equal the sum of currents (___).

a)

exiting

b)

flowing in the same direction

c)

at the source

d)

at the resistor

19.

Kirchhoff’s Voltage Law (KVL) states that the sum of all voltage drops and rises in any (___) of a circuit is equal to zero.

a)

closed

b)

open

c)

parallel

d)

series

20.

Scenario: A temperature sensor circuit in a car is powered by a 12V battery. The circuit consists of three components in series: a current-limiting resistor (R1), the sensor itself (Rsensor), and a pull-down resistor (R2). You measure the voltage drop across R1 as 2V and the voltage drop across R2 as 4V. Problem: Use KVL to determine the voltage drop across the sensor (Vsensor). What is the voltage drop across the sensor (Vsensor)?

a)

6V

b)

8V

c)

4V

d)

2V

21.

Scenario: A junction (node) on a semiconductor test board has four current paths. Currents I1=50mA and I2=120mA are entering the node. Current I3=80mA and an unknown current I4 are leaving the node. Problem: Use KCL to determine the magnitude and direction of the unknown current I4. What is the value and direction of I4?

a)

I4 = 90mA, leaving the node

b)

I4 = 150mA, entering the node

c)

I4 = 50mA, leaving the node

d)

I4 = 190mA, leaving the node

22.

A series circuit is characterized by having only (______) path for current flow.

a)

one

b)

two

c)

three

d)

multiple

23.

The current (I) is (___) through every component in a series circuit.

a)

consistant

b)

different

c)

zero

d)

alternating

24.

The total equivalent resistance (Req) is calculated by

a)

adding up all the individual resistances

b)

multiplying all the individual resistances

c)

subtracting the smallest resistance from the largest

d)

dividing the largest resistance by the smallest

25.

In a series circuit, the total source voltage (___) across the individual components in proportion to their resistance.

a)

decreases

b)

increases

c)

remains constant

d)

fluctuates

26.

A parallel circuit provides (____) for current to flow.

a)

multiple paths

b)

a single path

c)

no path

d)

one direction

27.

The (____) is the same across all parallel branches and equal to the source voltage.

a)

voltage

b)

current

c)

resistance

d)

power

28.

The total current in a parallel circuit (____) among the different branches, with lower resistance branches drawing more current.

a)

fluxuates

b)

remains constant

c)

is divided

d)

is multiplied

29.

The reciprocal of the total equivalent resistance (1/Req) is equal to the sum of the (____).

a)

the reciprocal resistances

b)

the individual resistances

c)

the voltage drops

d)

the current values

30.

Adding more resistances in parallel (____) the overall equivalent resistance of the circuit.

a)

decreases

b)

increases

c)

does not change

d)

doubles

31.

Series-Parallel circuits are also known as (__combination circuits__).

a)

combination circuits

b)

resistive circuits

c)

open circuits

d)

short circuits

32.

To analyze these complex circuits, you must first break them down into simpler (___) and (____) sections.

a)

series, parallel

b)

resistor, capacitor

c)

positive, negative

d)

input, output

33.

To calculate the total resistance, you systematically reduce the circuit by finding the equivalent resistance of each small (____) group.

a)

section

b)

wire

c)

current

d)

voltage

34.

A common example of a bridge circuit is the (___Wheatstone bridge___).

a)

Wheatstone bridge

b)

Maxwell bridge

c)

Schering bridge

d)

Kelvin bridge

35.

The purpose of a Wheatstone bridge is often to measure an resistance.

a)

unknown

b)

voltage

c)

current

d)

power

36.

A balanced bridge is achieved when the voltage drops on either side of the bridge connection are (___).

a)

equal

b)

different

c)

maximum

d)

zero

37.

When the bridge is perfectly balanced, the current flowing through the central meter will be (__).

a)

Zero

b)

Maximum

c)

Minimum

d)

Infinite

38.

Scenario: A Wheatstone bridge is used to measure a subtle change in resistance of a strain gauge Rx due to mechanical stress. The bridge is balanced, meaning the galvanometer current is zero. The known resistors are R1 = 100Ω, R2 = 500Ω, and the adjustable resistor R3 is set to 2,500 Ω to achieve balance. Problem: Use the balanced bridge equation to determine the resistance of the strain gauge Rx. What is the value of Rx? A. 12,500 Ω B. 1,250 Ω C. 500 Ω D. 5,000 Ω

a)

12,500 Ω

b)

1,250 Ω

c)

500 Ω

d)

5,000 Ω

39.

Fixed resistors have a set value, while (___) (like potentiometers or rheostats) allow the resistance to be adjusted during operation.

a)

Variable resistors

b)

Capacitors

c)

Inductors

d)

Diodes

40.

A (___) is a versatile tool used to measure voltage, current, and resistance.

a)

multimeter

b)

oscilloscope

c)

ammeter

d)

voltmeter

41.

To measure current, the multimeter is connected (___) with the circuit, but to measure voltage, it is connected (___) across the component.

a)

in series, in parallel

b)

in parallel, in series

c)

in series, in series

d)

in parallel, in parallel

42.

An (___) is an electronic instrument that allows you to visualize how a signal behaves over time by plotting (___) on the y-axis and (___) on the x-axis.

a)

Oscilloscope, Voltage, time

b)

Multimeter, Current, frequency

c)

Ammeter, Resistance, amplitude

d)

Voltmeter, Power, wavelength

43.

Signal generators are used to create various waveforms, such as sine, square, triangle, and (___) waves.

a)

Sawtooth

b)

Pulse

c)

Ramp

d)

Noise

44.

Electrostatic Discharge (___) can permanently damage sensitive electronic components.

a)

ESD

b)

LCD

c)

CPU

d)

RAM

45.

ESD protection equipment includes anti-static mats, anti-static bags, and (___Wrist Straps___).

a)

Wrist Straps

b)

Rubber Gloves

c)

Plastic Sheets

d)

Wooden Blocks

46.

A critical safety practice is to always (______) before connecting or making changes to a circuit.

a)

disconnect power

b)

wear gloves

c)

check voltage

d)

tighten screws

47.

Never work in (___) as moisture on your skin reduces its resistance and increases the risk of electrical hazards.

a)

wet conditions

b)

dry conditions

c)

cold conditions

d)

dusty conditions