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WorksheetsBASIC ELECTRICAL ENGINEERING
Total questions: 15
Worksheet time: 8mins
If 1 A current flows in a circuit, the number of electrons flowing through this circuit is
0.625 × 1019
1.6 × 1019
1.6 × 10 - 19
0.625 × 10 - 19
The resistivity of the conductor depends on
area of the conductor.
length of the conductor.
type of material.
all of these.
The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be
R Ω
2R Ω
4R Ω
8R Ω
The unit of resistivity is
Ω.
Ω - metre.
Ω / metre.
Ω / m².
Which quantity should be measured by the voltmeter ?
Current
Voltage
Power
Speed
Which quantity consists of a unit 1KWh ?
Energy
Time
Power
Charge
Which of the following quantities consists of SI unit as WATT ?
Force
Charge
Current
Power
KCL works on the principle of which of the following
law of conservation of charge.
law of conservation of energy
both.
None of the above.
Two 6 ohm resistors are connected in parallel , what is the effective value of the resistance
12 ohm
6 ohm
3 ohm
36 ohm
Cryogenics is a branch of science dealing with which of the following?
High temperature.
Low temperature.
Friction and wear.
Crystal growth.
Almost the entire mass of an atom is concentrated in the
protons.
electrons.
neutrons.
nucleus.
All ions of an element have the same
atomic number.
number of electrons.
number of protons.
both option A. and C.
According to the Bohr model, an electron gains or losses energy only by
moving faster or slower in an allowed orbit.
jumping from one allowed orbit to another.
being completely removed from an atom.
jumping from one atom to another atom.
The number of rings in the Bohr model of any element is determined by what?
Column number on periodic table.
Atomic mass.
Row number on periodic table.
Atomic number.
In Bohr’s model of atomic structure, the nucleus consists of
electrons.
electrons and protons.
protons and neutrons.
protons.
