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Electronics > 1st quarter slides > Flashcards

1st quarter slides Flashcards

1
Q

inventor who made improvements to steam engine

A

James Watt

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2
Q

invented the first battery using zinc, copper, and cardboad

A

Alessandro Volta

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3
Q

FRENCH PHYSICIST WHO DISCOVERED ELECTROMAGNETISM.
DESCRIBED A WAY TO MEASURE THE ELECTRICITY

A

ANDRE MARIE AMPERE

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4
Q

GERMAN PHYSICIST AND THE TEACHER WHO CONDUCTED THE RELATIONSHIP BETWEEN CURRENT, VOLTAGE, AND RESISTANCE,

A

GEORGE SIMON OHM

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5
Q

THE FIRST PERSON TO DISCOVER THAT moving a magnet near a coil of
copper wire produced an electric
current in the wire. He also
invented the first electric motor,
generator, and transformer.

A

MICHAEL FARADAY

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6
Q

A Canadian medical student WHO DEVELOPED the
electric light bulb in 1874.
Unfortunately, he can’t afford to
develop his idea further. So in
1889,he sold their patent to
Thomas Edison.

A

HENRY WOODWARD

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7
Q

American inventor that
purchased the patent of Henry
Woodward and began to work in
improving the idea.

A

THOMAS ALVA EDISON

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8
Q

A Serbian inventor that
invented the first electric
motor by reversing the flow
of electricity on Thomas
Edison’s Generator. The
pioneer of Alternating
current.

A

NIKOLA TESLA

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9
Q

In Electricity has played a crucial role in the
development of modern societies. It has
improved the quality of life, enabled
economic growth, and provided access to
various amenities like lighting, heating,
cooling, and electronic devices.

A

SOCIO-ECONOMIC IMPACT

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10
Q

The availability of electricity has paved the
way for significant technological
advancements, from telecommunications and computing to medical equipment and
industrial machinery.

A

TECH ADVANCEMENTS

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11
Q

The generation of electricity from fossil fuels can contribute to air pollution, greenhouse gas emissions, and climate change. However, transitioning to renewable energy sources
can help mitigate these impacts.

A

ENVIRONMENTAL IMPACT

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12
Q

Electricity can be hazardous if not
handled properly. Electrical accidents can
lead to injuries or even fatalities.

A

HEALTH AND SAFETY

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13
Q

2 TYPES OF SOCKET

A

MALE AND FEMALE PLUG

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14
Q

ELECTRICAL ENERGY CONVERTED TO MECHANICAL ENERGY (ELECTRIC MOTOR USED IN FANS, VACUUM CLEANER)

A

MECHANICAL EFFECT

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15
Q

ELECTRICAL ENERGY CAUSED BY ACCUMULATION OF STATIC CHARGES WHICH IS THEN CONVERTED TO LIGHT AND SOUND ENERGY

A

LIGHTNING EFFECT

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16
Q

ELECTRIC ENERGY CONVERTED TO HEAT (HEATING OF ELECTRIC IRON, ELECTRIC BULB)

A

HEATING EFFECT

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17
Q

ELECTRICAL ENERGY (ELECTROMAGNET USED IN ELECTRIC BELL)

A

MAGNETIC EFFECT

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18
Q

ELECTROPLATING USED IN POLISHING OF ARTIFICIAL JEWELRY, PROTECTING IRON UTENSILS FROM RUSTING

A

CHEMICAL EFFECT

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19
Q

LAKAS NG KURYENTE

A

AMPERE

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20
Q

ELECTRICITY AT REST

A

STATIC

21
Q

DYNAMIC

A

KURYENTE

22
Q

ELECTRICITY IS

A

INVISIBLE AND POSITIVE ENERGY

23
Q

WHAT IS ELECTRONICS

A

THE EFFECT OF THE ELECTRICITY

24
Q

This can be done through the use of generators such as the motion of a turbine or the ROTATION of a crankshaft, into electrical energy.

A

MECHANICAL SOURCE

25
Q

a clean and renewable source of electricity, as it does not produce greenhouse gas emissions or other pollutants

A

WIND SOURCE

26
Q

refers to a type of renewable energy that uses the heat from the Earth’s interior to generate electricity

A

GEOTHERMAL SOURCE

27
Q

is a type of renewable energy that uses the power of falling or flowing water to generate electricity

A

HYDROELECTRIC SOURCE

28
Q

refers to a type of renewable energy that uses the power of the sun to generate electricity

A

SOLAR SOURCE

29
Q

MATERIALS WITH HIGH ELECTRON MOBILITY ARE CALLED

A

CONDUCTORS

30
Q

MATERIALS WITH LOW ELECTRON MOBILITY ARE CALLED

A

INSULATORS

31
Q

a formula used to calculate the
relationship between voltage, current and
resistance in an electrical circuit

A

OHM’S LAW

32
Q

TO FIND VOLTAGE YOU NEED

A

I (CURRENT/AMPERE) MULTIPLIED BY RESISTANCE

33
Q

TO FIND THE CURRENT/AMPERE YOU NEED

A

VOLTAGE DIVIDE BY RESISTANCE

34
Q

TO FIND RESISTANCE YOU NEED

A

VOLTAGE DIVIDE BY CURRENT/AMPERE

35
Q

A light bulb is connected to a 110V
circuit. If the resistance of the frying
pan is 10Ω, how many amperes does
the light bulb draw?

A

11A

36
Q

When a current of 3A is run
through the coiled heating element
of an electric stove, the resistance
of the element is 80Ω. What is the
voltage of the stove?

A

V=240V

37
Q

A light bulb carries 0.5 A when 4
volts is impressed across it. What is
the resistance of the filament in the
light bulb?

A

R=8Ω

38
Q

A flat iron draws a 15A in 230V
supply. Calculate the power of the
flat iron.

A

P=3,450 watts

39
Q

TO FIND POWER YOU NEED

A

VOLTAGE MULTIPLIED BY AMPERE

40
Q

A circuit consists of a 12-volt
battery connected to a resistor with
a resistance of 4 ohms. Calculate
the current flowing through the
circuit.

A

I=3A

41
Q

Calculate the current drawn in the
circuit with a supply voltage of 115V
and a resistance of 8Ω.

A

14.38A

42
Q

Determine the supply voltage of an
electric lamp shade with a rated current
of 15A and a resistance of 10Ω.

A

150V

43
Q

A circuit contains a 12 volt battery
connected to a light bulb having a resistance
of 5 Ω. Find the current.

A

2.4 A

44
Q

Given a voltage of 110 V and a current 5
A, What is the resistance?

A

22Ω

45
Q

If a circuit has a resistance of 18 Ω and a
current of 15 A, what is the Voltage?

A

270V

46
Q

IT IS A COMPLETE PATH OF ELECTRICITY FROM THE SOURCE GOING TO ANY ELECTRICAL/ELECTRONIC DEVICES

A

ELECTRIC CIRCUITS

47
Q

COPPER, METALS, WATER, GRAPHITE

A

POWER SOURCE

48
Q

CONNECTING TWO OR MORE CELLS TOGETHER IN SERIES OR PARALLEL MAKES A

A

BATTERY

Electronics (1 decks)

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