Electric Circuits and Currents
Compared to long thick wire of copper, the short but thick wire would have
more resistivity
less resistivity
equal resistivity
may have more or less resistivity
less resistivity
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To control electric current in a circuit, there is used aA. resistor
B. insulator
C. conductor
D. wire
Every time a fuse melts, you have to
A. change the wire
B. change the fuse
C. replace the plug
D. replace the circuit breaker
In most of the loudspeakers, electrical signals pass through a
A. magnet
B. wire coil
C. spring
D. resistor
Wires are heated when they carry
A. electrons
B. protons
C. ions
D. photons
Simple circuits have
A. single pin plug
B. double pin plug
C. triple pin plug
D. massive pin plug
For electrolysis to work, used compound should be a
A. insulator
B. conductor
C. metalloid
D. non conductor
Compared to devices having wires, torch bulb does not conduct
A. heat as well as wires
B. electricity as well as wires
C. both a and b
D. electricity as well as energy
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