No student devices needed. Know more
25 questions
What is a collection of interconnected electrical devices such that charge,usually electrons, can flow through it continuously without beginning or end?
circuit diagram
electric circuit
electronic components
circuit symbols
What is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, etc. in a schematic diagram of an electrical or electronic circuit?
circuit diagram
electric circuit
electronic components
circuit symbols
In Electronics, PCB stands for _________________________.
Printed Circuit Base
Passive Component Board
Printed Connection Board
Printed Circuit Board
What electronic component has this symbol?
ammeter
voltmeter
ohmmeter
galvanometer
What transducer converts electrical energy to kinetic energy (motion)?
buzzer
amplifier
motor
heater
What transducer converts sound to electrical energy?
buzzer
loudspeaker
earphone
microphone
This symbol represents ____________ logic gate.
and
nand
not
nor
What electrical component is used to step up (increase) and step down (decrease) AC voltages?
coil
motor
fuse
transformer
Which component has this as its circuit symbol?
ac supply
dc supply
open switch
closed switch
Which of the following is the symbol for capacitor?
What is the component supplies electrical energy to a circuit, where the current is continually changing direction ?
direct current supply
alternating current supply
battery
power supply
What does this symbol represent?
diode
capacitor
transistor
resistor
What is the new symbol for resistor?
What instrument is used to measure electrical resistance?
galvanometer
ammeter
voltmeter
ohmmeter
What sensitive instrument is used to measure tiny currents, usually 1 mA or less?
ammeter
galvanometer
oscilloscope
voltmeter
Which logic gate has this as its symbol?
or gate
nor gate
not gate
ex nor gate
What is the function of fuse?
It is used to connect components together for electric current to flow.
A safety device which melts if the current flowing through it is less than its specific value.
A safety device which will 'blow' (melt) if the current flowing through it exceeds a specified value.
A semiconductor devices used to amplify or switch electronic signals and electrical power.
Which of the following is a symbol for transistor?
What does LED stand for?
Lamp Emitted Diode
Lighting Emitted Diode
Lamp Emitting Diode
Light Emitting Diode
What transducer converts electrical energy to sound?
buzzer
microphone
amplifier
oscilloscope
What transducer converts electrical energy to heat?
motor
heater
buzzer
solar cell
What is the circuit symbol for battery?
What is teh symbol for lamp used for lighting?
What electrical component may be made to either conduct (closed) or not (open) electric current?
resistor
conducting wire
switch
cell
What component is used to resist or oppose the flow of current?
transistor
capacitor
diode
resistor
Explore all questions with a free account